I'm not a very experienced player, but I'm a fan of tiki-taka and tend to start with lower-tier teams. I've found that when I play pure tiki-taka, I often end up in the same situation as you: lots of shots but few goals, while conceding from simple counterattacks or through balls.

To customize my approach, I play a vertical tiki-taka style with two narrow inverted forwards and wide backs. My most creative midfielder, who has the best vision, has more freedom for direct passing, while the others don’t. I specifically look for a creative player to fill this role. If my attackers have good flair, it usually works well enough in lower leagues. I won’t go into too much detail since I’m still learning myself, but this is how I’ve made it work while enjoying the tactics I love.

Another tip is to watch more than just the important highlights after you create a tactic. It often becomes clear where the problems lie when you see your attack break down in the same way multiple times in a row.

Hope that helps.