iphone 4 overheating pissing me off

Like its pissing me off, it shows up and locks my phone, and sometimes closes it if I try to do anything.. like fudge off..

I have canser

I have a dermoid cyst on the top of my testicle that needs to be removed.. it costs 10 grand USD to have this life and pain-saving surgery which lasts like 2 days. Help a b rother out.