Thanks for the replies so far. I try to grind at least another 10K hands at 100NL since I don't think I'm ready to move up to 200NL, although my BR almost is (2.9K).

I don't mind playing too tight. I do mind leaving EV on the table however, so what can I add?

EP: I limp PP up to JJ, KQs, ATs+, sometimes lower Axs. I raise AA-QQ, AK, AQ.
MP: now I raise a few more hands such as JJ, KQs, AJs. Limp SC's 54s+ with a few limpers before me. Still fold QT, KT, KJ, ATo, AJo.
LP: Limp suited gappers and unsuited connectors with 3 or more limpers. Raise 99+, AJ, AT, KJ, KQ, QJs sometimes a lower PP/SC/KT/QT. I raise when first in from BN/CO of course.
SB: Complete with all of the above, still need limpers for gappers and (un)suited connectors.
From the blinds in general I only raise QQ-AA, AK, AQ.

I'm 4-tabling so I don't use any reads (Gametime+ doesn't work that well with minitable view), so there's some room for improvement.
I still haven't read a book about poker, so I will do that too (HOH1/2, SS1/2, maybe TOP).

I think 6-tabling 200NL at 5PTBB/100 is achievable, maybe I get to that after a few months..