Since you enjoy playing the Ruy Lopez as white, why not play it as black? You should know both sides of the opening pretty well in this case, and I think you would do well. It does give some center control, but you must really capitalize and develop on the opening.
Might I also point out that not all openings by black is to try and control the center. If you want some center control, then I suggest the French Defense in response to 1. e4. That is, 1.e4 e6 2.d4 d5
I hope this helps.
Basically, I can play fine with white, my favorite opening is the Ruy Lopez/Spanish Game. The problem is with Black though. I just don't know any good counter-attacks. I will summarize my playing style and what happens in the games and if anyone could reccomend an opening in response to 1. e4 I would be greatful.
What happens when I play Black:
-White will always have more control of the center
-I have no opening attacks in my repetoir for Black. For example, with white I will open with the Ruy Lopez which I consider an opening attack. Also, with white I can attack f7 square and the d7 square(if the opponent's queen is out).
-I often find myself transitioning into the end game with a poor pawn structure against white. I will either be down a pawn or have two pawns doubled up on the same file.
My playing style:
-I like to find a good opening and memorize it and then use it to transition to the middle game with the best position possible.
-I enjoy controlling the center and having room to attack. When I'm cramped in my base I often have no ways of attacking and am just defending, which I often feel results in a loss.
-I just don't know how to control the center as black. I wouldn't mind playing a closed game and playing positional, but I'm not experienced enough right now to understand how I would go about doing that.
If you guys have any resources on the internet you could link me to or books that will help me learn what ever opening you suggest that would also be greatly appreciated. When I play with Black I feel like I have no plan and I'm just waiting and hoping I find something, whereas with White I will use the Spanish game and in general feel like I have more plans I will think of at the start.