Stress and anxiety can make you feel and act like a total different person. I have dealt with anxiety for a while now and learning to cope with stress quite well. When I was at my worst though I just didn`t feel like myself anymore, I was an emotional wreck, angry one minute then in tears the next. The more you stress about it though the worse it gets, its like a viscious cycle.
Learning relaxation techniques may sound silly but they really do help. This doesn`t need to be meditation, it can just be lying on your bed listening to music giving your body and mind time to process things. It really is a learnt behaviour and it can be changed, your brain kind of learns this new stressful behaviour. Try distracting yourself from any thoughts that are negative.
If things don`t get better you may feel that speaking to someone or taking some form of medication may help. It doesn`t make you weak it just sometimes helps through hard times in our life. Anti- depressants aren`t addictive and can be real mood enhancers. Sometimes its really easy when you have a stressful time and feel unable to cope that depression sets in, it only gets worse if you don`t get help. Ask your doctor it can `t hurt to speak to someone.
Relax and enjoy your weekend, if things stress you out so much its maybe time to reassess things in your life and make positive changes.