Lots of good stuff here. If I may just add one thing.

Learning how to use a computer can seem extremely complicated if you look at everything involved as a whole. Break the many different operations down, figure out and learn one at a time, and things become much simpler?

With that in mind, maybe try to become purpose oriented with your flying? Have a purpose in mind when taking off - and focus on that purpose. Left turn. Right turn. Left turn coming at you, left turn going away from you. Conquer each maneuver one at a time, while reviewing those previously learned constantly. Maybe split each flight with 1/2 new and 1/2 review material? When broken down to individual maneuvers, it may be seen you don't have to hook many of them up end to end to complete a flight?

Another piece may be flying frequency. Once a week while learning may not be enough? Once a month, and it'll take forever.

Focus on what you're trying to accomplish, just remember to have some fun while doing that. Don't be shy about doing a loop (at altitude, but otherwise without notice) when your instructer's attention seems to be fading. That'll bring things back into focus.... FWIW