Look out of the window!
Get your instructor to demo a perfect turn whilst you watch the horizon (the REAL one -not the instrument!)
Note the distance that is above the instrument coaming (from memory..a long time since I flew a 152.. I think its about 4 fingers to the left and slightly different to the right).
Once you get that off pat, you will find that you can roll into /out off a turn very quickly and accurately without chasing the instruments. This then frees up brain space and enables you to judge the roll out onto heading much more accurately.
At 5 hours ..don't worry..lots of people find it difficult..it will come with time and practice .All of a sudden it will fall into place and you will wonder what you were worried about!