6max noob, $1-$2, 17k hand sample, pfr% and blind defence question?

[someday]

currently playing 6max, 1-2, ub.

VP$I = 18.01
PFR= 13.65
BB100= 3.75
ATSB= 20.01

This is a small sample at around 17k hands.

as you can see i play super tight in the blinds.
Instinctivly i find myself giving up my small blind the majority of the time, rather than play a marginal hand, out of position.

I can see that this type of play could be easily exploited by aggressive sb and cutoff raisers. also have concerns that looking at blind defence from a positonal pov over an equity pov could have negative longterm implications.

all of this considered does anyone think that playing this tight in the blinds, in a 1-2 game, for someone new to 6max, is a good idea?

also my vp$i.......
If i were to play "properly" in the blinds would this bring my vp$i closer to the 22-25 mark.

please bear in mind im new to 6max.
Im playing as tight as poss to while tryin to learn the nuances of the game in the hope that i can learn to play more hands profitably

thanks,
sd