I'm taking online classes to get ahead in school. Everyone seems to think I'm doing amazing, but I've been just cheating the entire time
Is that really what you are doing?
I'm afraid that I won't achieve my full academic credit by being honest.
Cheating in school causes failures and ruined academic integrity. You should be honest and know that you can excel without cheating.
It's cheating only if you get caught.
Whether you're caught or not, as you ascend to higher more challenging materiel at the upper levels, you won't be prepared. If someone hires you, you'll underperform because there will be limited opportunities to cheat at work.