Dirtbike question

im about to stop messing around with a xr75, im now getting a ttr 230 and im not sure if its too much bike for me

Just be careful with it. I think -at least for me- power is more manageable if you are physically the right size for the bike. If you can get two feet mostly on the ground, and if you can man-handle the bike in tight spots, it’s a lot easier to ride a bike with maybe a little more power than you’re used to (and that Yamaha will be like a Corvette to the Yugo you’ve been riding). I assume this is a fairly new bike, since the 230 has only been around for a couple of years. Definitely sit on the bike, see if you can putter around a little before you buy, see if it’s comfortable for you.