Hello dear, the problem is that, there isnt 1 shot solution for acne and black heads.
As in your age it is a very common issue.
Acne problem is not just external but due to some internal metabolic issue also.
Get treated for your existing acne problem with proper medication / peel therapies and dietary changes.
Further you will have to continue certain set of good quality skin products which will always keep your skin healthy and acne free
Next Steps
Meet a doctor give the history and get done ur treatment earliest so that you dont form scars on the face.