If used properly, latex condoms will help to reduce the risk of transmission of HIV infection (AIDS) and many other STDs.
The safest way is to abstain but only God knows how people succeed there, and condoms are safer. Not safest!
You are doing a good job and also make sure to wear the right size condom. There is regular and large. In fact there are many sizes. Make sure it is latex though because latex has smaller holes than HIV. Unless you are allergic to latex. Then you can wear another type condom and put the latex on top.
Lubricated condoms helps things go smoother avoiding breakage.
Know your size so as not to squeeze your way around and also don't wear a sack instead of a condom. It will slip off.
All the best
Muthoni (Mson)