Only one thing will really help... Currency and lots of it. The more frequently you fly, the more the procedures become second nature and natural.
If your lessons are spaced out, you will be consentrating on checks and acronyms rather than flying the aircraft. You will also be concerned about, for example, turning at 500ft instead of 700ft, as you will be planning everything for the turn at 700ft. You should be planning for what the conditions dictate.
Keep at it, but keep current and your flying will improve dramatically. You will also spend much less in lessons as you will need fewer of them.