retep
Regular
Don't worry about look ahead yet, at your stage, you need to be comfortable with F2L FIRST, before you look ahead.
While it greatly helps knowing your F2L well, I wouldn't say completely ignore look ahead. If you are having trouble with just inserting and such in F2L, ya of course don't focus on look ahead, but kind of keep it in the back of your mind. Doing good things early makes it much easier to form a good habit, whereas the longer you go without doing this, the harder it will be to break your bad habit.
Anyway, I would perhaps recommend to find an F2L pair then close your eyes quickly and try to insert it, if you don't know what to do, set up the case again and figure it out. I found this helpful to me in identifying holes in my F2L, it also makes it easier to develop look-ahead later as you can do something more useful than having your eyes closed.