Resident alien

Im hoping you can clear some stuff for me. So i came here in 2019 on J1 visa -> until dec 2021. Then i switched to F1in 2022 and am here until now on F1. I didn't leave the US since I got here in 2019. I have trouble figuring out if i am non-resident alien or resident alien. I have been getting mix answers on the internet. So far i have been just filling out 8843 cuz I had no income, however i was on CPT last summer that's why im trying to figure this out.

If i am resident for tax purpose - am i eligible for the school refund? Do i still have to file 8843?

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