The numbers that are way more important than how often you hit a straight or 2 pair is how often you flop one pair and an inside straight draw, a pair and a flushdraw, a flushdraw and a gutshot, a gutshot with overcards, an open ended straight draw, and oesd with a flushdraw and so on. - see flopzilla or stoxcombo.
You flop lots of crap that is either easy to play and/or allows you to be very aggressive because it has some equity even against a very tight calling range.
However: You suck at poker, and you wouldn't be terribly ill advised to just leave them out of your preflop calling range for the time being. Or at least review your success with those hand ranges regularly.
