I am pretty sure my computer got hacked, what do I do now?

Too many questions to resolve your problem, like what internet security do you use? What does the security do when it detects it, is there an option to remove it? What you need to do is go through all your programs and everything you have never heard of or don't need any more, delete it. Just also be careful of what you are deleting so you don't get bigger problems. If you do not know what you are doing or are worried, just take the computer to a computer shop and they will fix everything in a couple hours. As long as you go through all your programs you should be fine. As long as your comp isn't crashing and you can still log into various accounts of things, its fine.