Two things.

Protein powders should be evaluated based on their nutritional profile, not by the profile of the recommender.
Nutrition is only one factor in body recomposition. What kind of effect are you looking for?

The window you set for yourself is too short to measure strength gains.
The general milestones I see are 60 - 90 days. That will give time for your body to grow assuming you rest and feed it enough.


Your bench numbers are good though the ratio doesn't jive with the deadlift numbers. Usually deadlifts are around double bench numbers, so perhaps your bench is incredibly good or your deads are lagging.

Newbie or not is not dependent on how much you lift, though I'd admit there is some correlation as people who have been training tend to be stronger.
Technique is the most important component of the lift.

If there is an experienced head in your gym, consider saying hi and getting their thoughts on it.