I decided that I'm going to cheat on a project.
Why would you decide to cheat?
If I don't cheat, I'll fail.
That doesn't sound like a good attitude to have. There will be consequences if you get caught. You should try your best and accept whatever results you get.
But I'm tired. Life is so unfair.
If you try your best, you can look at what you did wrong and work to improve in those areas next time. If you cheat, you won't actually know what your real performance would be and you'll have no way to get better at something.