I first docked just over a week ago, I 'tried' to do a space station thingy and got my 1st part to orbit with no problem.
However, I brain-farted when I sent my docker(2nd part) without the RCS thruster block, instead I put like 16 linear ports around my ship. Which gave me NO vertical control while trying to dock...
So, being me, I docked without RCS at all, eyeballed my line of sight with docking ports and only used my engine to cancel relative velocity and angles, and after like 5 tries, it finally happened! Was very proud of myself haha