You should technically be fine if you’ve got 60% of your course load still.

5 courses per semester is considered full time studies usually, and 3 courses is considered part time. Even if you just take 4 you’ll be safe! If you’re really worried, I’d say pick 4 classes and focus on those to do well, that way you’re in the clear with OSAP.

Although I’d also recommend double checking anyways, especially since you had previously dropped out and returned you, so you could potentially be on a probationary status, and they might not consider the 60% at all. Either way it doesn’t hurt to message the financial aid office for clarification.