PowerScore has tons of study plans on their website - I definitely recommend the three month one!

What helped you bump your score from 136 to 150?

Also, most schools I'm looking at for Fall 2020 will even take the February score, so I'd aim for January and February instead. I'm in the same boat!

@ said:

I started at 135, now PTing upper 150s looking to break the 160s you can do it!! just with patience

How long have you been studying? What was your method where you saw the most improvement?