Do you experience any pain with your jaw popping/clicking/cracking and locking?

Majority of people with TMJ don't need surgery, so don't stress too much over that. Try and keep your jaw relaxed and pay attention as to whether or not to clench or grind your teeth, as that's definitely not good for the jaw.

No, no pain, i can just feel this like short impulse going through the left left side of my face (that's the side i have the cracking joint on).

You have no idea what a huge relief i had when i read that, thank you so much melanieV! I've been at this cybercafe for all this time just waiting for someone to answer. God bless you!

The impulse on the left side of your face might be due to the muscles tightening. You could try massaging your face when you're in the shower.

Were you diagnosed by a doctor or dentist?

I'll do that.
I was diagnosed by neither, i just assumed because I read about TMJ symptoms and they were the same as mine. I can't afford a doctor/dentist, and besides, i've developed this fear of them as well...

It almost feels like bone touches bone sometimes, as i said someone told me that the joint would be like worn down.

I'd say, if bone touches bone, you will be in a lot of pain.

There is a chance that your problems may stem entirely from your muscles. Try not to stress about it, coz that'll just make it worse. Just go easy on your jaw, relax it, eat soft foods, don't open it overly too wide. TMJ isn't really something that can be healed, but it can be managed.

If you google TMJ, you can find a lot of helpful information. Just remember that when choosing a course of action, try conservative, reversible and non-invasive treatments first.

If it's muscular, with a little TLC it may go away on its own. If it is the joint, that doesn't necessarily mean it will need surgery, but the earlier it's caught, the better chance you have of fixing/helping it.

Good luck!

I don't mean to disagree with the other replies, but it definitely does not sound muscular only. Sounds as if the condyles are not in the correct position. This is not something that is going to get better simply from muscle therapy, etc.. You really need to see a dental practitioner who can reposition your jaws, using splinting, so that you don't have the clicking and pain. Those are signs that something is out of whack. And don't let them do surgery on the TMJ's, because everyone I know who had surgery, it just made it worse.

Best wishes to you!

are you sure? please tell me MelanieV was right, because that is the only kind of treatment that is available for me...

At age 17 I had almost identical symptoms. I was fortunate and could get it treated. It did not require surgery...but if it had continued it could have.
From the sound of it, half the replies are half right. You probably have incredibly tight muscles. This pulls the cartilage off the bone...leaving bone on bone contact. Although that sounds painful, in my instance I definitely had bone on bone contact, but it was not accompanied by pain. If your jaw is locking shut, that's almost guaranteed what is happening. This can cause loss of bone in the joint and horde of problems down the road.
Ideally, get splints for your jaw from a dentist or a TMJ specialist.
Without that, here are some other things that might be able to help.
A list of DON'TS and NEVERS: chew gum, clench your teeth, bite pens, grind your teeth, eat bagels and other chewy foods, deliberately pop or lock your jaw. As my TMJ specialist told me, the only time your teeth should be in contact is for 2s each day from the cumulative time when you chew.
What you can do,
Strange as it may sound, poor posture can contribute to the TMJ problem. Make sure you aren't slouching.
Another strange one, breath through your nose and keep your mouth closed. Mouth breathing puts stress on the joint and muscles.
Massaging the face does almost nothing. There are pressure points that do work and you just press on them for 20s or so. There are some on your temples, just below your zygomatic arch, and just inside the back corners of your jaw (where many people mistakenly look for lymph glands).
If you think you might be grinding your teeth and clenching at night while you sleep, see what you can do to get a teeth splint, they make generic ones that might not be too expensive. If that is impossible, getting a sports mouth guard and wearing that MIGHT be able to let your jaw rest in a more neutral position.
If it is caused by muscle tension, relaxation exercises are good.
A really quick and easy muscle relaxing exercise is to puff up your cheeks and hold them puffed (teeth apart) for 20s and then slowly blow it out. This relaxes the muscles in your cheeks that can really put tension on the jaw.
If you are double jointed, it can also be caused by loose ligaments, and really you should see a doctor.
Ideally, see what you can do to see a specialist, If you lose enough bone mass in the joint it can spell jaw replacement surgery for the future.
As a side note, watch how much overlap you have of your front teeth. If you notice they overlap less than they use to, you are really losing bone mass and need to see a doctor ASAP

Definitely see a dentist if you can ... save some money up, and get whatever diagnose you can to determine exactly what's happening. Be gentle to yourself and keep your head held high, and you can pull through this! I'm praying for you.