Just based on the 2018 charting outcomes stuff, the mean step 1 was 226 and mean research bucket was 4.8 (posters/presentations/abstracts/pubs).
1. I would shoot for 230+ on step... very doable. You’d be in a good spot for matching into psych with that
2. Look at your current research pedigree, how does it match up? A few extra projects won’t hurt but are not really necessary just to match in psych
3. ECs - no one cares, just do something you like to do if that’s what you want to do. Just make sure you don’t overload yourself, because the PD survey clearly indicates that test scores, grades, and evals are all >>>>>>> than ECs.