Help me fix my problems

Keisha • I am 26 years old Snapchat: keishahardy1997 I don’t have the premium account

I don’t know what I’m doing wrong I put primer on, then I swapped out foundation for bb cream , I put concealer on , this where it’s get hard I put setting powder on when I put powder on it looks cakey and powdery I’m not sure what I’m doing or what I’m doing wrong...also when I put on primer I have oily skin and large and a few primers I’ve tried don’t look like they minimize my pore at all and when I put them on my face they feel greasy feeling on my face and there new and drugstore brands