Find good spot, shallow, lots of space. It's hard lear in deep water. You just drift downwind, go back up and get tired.
Wait for an good day. Ideal conditions 15-18kts. If there are kiters around, there should be some who rides. If you are alone, something is not good. 99% no wind
Be comfortable and enjoy what you are doing. Setup, self launch, etc...
Have a plan. I'll drift up to here, body drag up there, if something happens safety zone is here. If you just wait to some magic to happen, it will not happen.
Practice. Move kite a lot. a lot. Fly it. You should not stop move it first two or three dives to get up & planing. Let front lines pull you (first dive) and then sheet out and pull hard on harness so you are pulling kite up. Repeat that until you can park it or crash :)
Read this:
www.bayareakiteboarding.com/forum/viewtopic.php?f=39&t=7845In two sessions, at least 2 hours in water keep trying you'll be up & riding even shouting on wind when your kite lines starts to sing.
Good luck