Water starting will make everything easier once you have everything else right. Until you are comfortable with the harness, the straps and blasting back and forth I would not stress about it too much. Uphauling is a part of the sport that you can't forget about even at an advanved stage. In wave sailing, in light conditions there may be a need to uphaul on a small board and in breaking waves, You need to be fast and spot on with your uphaul technique so make sure you take this oppourtunity to slow down a bit and nail a fast uphaul procedure.
......Don't get me wrong you still need to practice water starting any chance you get, As once nailed it will enable you to waste less energy as well as get out in stronger winds and rough conditions. There's a dvd out there called "The ABC's of water starting" try and get hold of it, After watching it once all it took was a few hours in the water and I was sorted. If you can't find a copy send me a PM and i'll lend you mine. I was at least a year into the sport before I was water starting and probably another few months before I was getting 100% of my starts, It will take time.
.....Just learn to fly the sail first, Once you have this sorted the worry about trying to get onto the board.
A few tips1.Start in chest deep water, Fly you sail and move your board around you in a complete circle while you stay in the same spot. Do it clockwise and anti-clockwise, This will get you use to what the wind will do to the sail at different angles and prepare you for the rig flip when in deeper water.
2.Keep the sail as low to the water as you can untill your ready to power up, pull only on your front hand untill your ready to go as pulling with your backhand sheets the sail in and you will power up. If you feel the sail getting away from you, sheet out your back hand and give you front hand a quick sharp pull to depower the sail.
3.As others have said, Learn to body drag with the sail. Get the first 2 points sorted then just get dragged through the water and get use to putting the power on and off. You need to be able to get your self dragged in a straight line without rounding up into the wind or getting the rig pulled right out of your hands.
4.Once you get 1, 2 & 3 sorted then try and get on the board, Just remember when you pop up onto the board to give the sail a quick sheet out to dump the extra power. This will stop you getting pulled right over, It's very quick though....Power off/on other wise you might just fall back in.
There would be hundreds more but I think if you do these everything else will fall into place, Where we waste energy is in swimming the rig into position, trying to release a sunken clew or getting a sail loaded with water to release and fly. So down the track you need to think about how to quickly swim you kit into the right position, How to swim the kit free when sunk and how to even crash in the right position for a quick water start.
Anyways, Lots to still learn but from what I read your doing real well and will soon have it mastered, Keep at it