Retin A comes in different strengths and isn't only used when "acne is extreme." A dermatologist will prescribe the strength according to the type of acne OP has.
Also, facial scrubs can be harsh and aggravate acne which is often inflamed.
Retin A can be even more drying and comes with more side effects than regular acne medication. Personally speaking I took a product that had a small percentage of retinoids in it, and it made my skin dry and wrinkly, it was way harsher than Clearasil for me. Retin-A is one of those " things will get worse before they get better" type of products; meaning acne might flare up worse for a while, or wrinkles and dry skin will be more pronounced ( if you're using it for wrinkles that is) before things disappear. Extreme was too harsh of a word I admit, but it's definitely a step you should take after you try after scrubs or regular acne medication. For me, a facial scrub with salicylic acid was the least drying option I tried out of Retinoids and acne cream. I just think breh should try some over the counter shyt and switching his diet for a little while before he pays money to see a dermatologists, his case of acne doesn't sound that serious to me.
Edit: I just noticed op mentioned he wants something for acne scars too, so in that case, yes, Retin-A is something you should try. Retin A increases skin cell turnover and increases collegen production, which is why it can be harsh on your skin at first, but work wonderfully after your skin acclimates to it. Just know that scars still won't disappear overnight.
And using Cetaphil to clean your skin with is a good idea too, regular soap can clog your pores and lead to more acne.