dreamsofspace

Might suggest parts getting more and more reliable as you advance into the tree, being unreliable at first as "newly developed technology", but eventually getting to the point of rarely having failures once they have been "refined" for a couple years in-game. Don't know how hard that would be to implement.

What have you done so far?

There have been a few SSTO's constructed, not lifting from Earth but lifting from the moon, as the LEV attained lunar orbit in a single stage

Actually IRL it doesn't matter either, it's a free torque

I recently got Interstellar at first, and it is a little overwhelming, but there are some helpful Youtube videos. I particularly recommend Scott Manley's interstellar quest.

I use the NavyFish docking UI, it won't dock for you, but it gives you a good idea where the other ship is in relationship to yours, and it makes docking a lot easier. In addition, there are tutorials on Youtube that may help. I struggle with this as well, but the NavyFish UI makes aligning the two craft much easier.

Congrats! It took me forever to finally get into orbit. And then I discovered map mode, which made it at least a little easier...