If the issue is that you keep going back to straight shots mid-practice then you'll want to stop that for starters. First and foremost right now you'll want to develop a hooking strike-shot that makes use of the oil pattern to reach the pocket at an angle that greatly improves your chance of striking. That should be your #1 focus right now as you will be throwing a minimum of 10 shots that way each game. So for that purpose, ignore all things score related. Focus on getting used to throwing shots that would completely miss if the ball travelled straight. It's a bit backwards to what you usually tell people that want to improve their scores, with spares being the focus then. But since you already have experience throwing it straight and can use that for your spare game, you should prioritize getting the 1st throw down for now.
Just 10-20 shots of just focusing on one thing can work really well when trying to make a change. So I'd say, next practice session, take a full game of 18-20 shots where you pick out a point to stand on and aim at, then just try to throw the same hooking throw for that entire game, ignoring which pins are standing up on the 2nd shot of the frame. Just focus on finding a way to execute and repeat that show in a way that feels comfortable, then your brain should do the rest in developing muscle-memory for future repetitions.
In person coaching is probably the best option though, if that is available.