It sounds to me that your current and your wind are going in the same direction. You lose a lot of power when this happens so you might need a bigger kite or board. All so I tell new people all the time to just ride as much as possible and then walk back upwind. A lot of times our kooks just ride a little bit downwind then walk back upwind with their kites at 12 in the middle of everyone .
I would all so suggest you learn how to trim your kite properly. I'm amazed with how many people there are that do not know how to trim a kite. I'm not talking about new riders either but people that have been kiting for a few years. If your sheeted in too much you will kill your upwind ability.
Whenever there is wind in the ocean here, we also get current going that same direction. Usually you have to put all of your energy into staying upwind, so if you jump or ride a wave, you wind up a hundred yards down the beach.
Because of this, we always do downwinders when we ride in the ocean. Just set up a car two miles down the beach and enjoy riding the waves and jumping as much as you want as you go downwind!
i guess you mean "longshore current" which is generated by waves and helped by wind. this can suck the power from your kite and push you down wind at same time. you have to be well powered. or find a better spot.
Fins. They will make a world of difference. I see many big guys(don't know your weight) that don't want to take the surfboard plunge, use the sectors with those big ass fins. You can get by with a 13m kite in the lighest of winds. Not much you can do but cruise around though. If you are riding in the surf, then I would recommend to get a cheap surfboard that's your size and learn to ride that. So much more fun, especially in the lighter winds. Plus, no more walk of shame. If you decide to go the surfboard route and have any questions, feel free to PM me.
Fought going to directional after miserable experiences with early surf kiteboard and early race board.
But have same conditions of side-on wind, current, and additionally usually significant shore-break - and decreasing SoCal wind - normally 10-14 mph at my "home" beach.
After much reading got the Litewave 6' DV8. Very happy so far. Gets up and goes earlier, using smaller kite, and very comfortable ride. Still need much improvement gybing but it will be my light wind and surf board.
A friend prefers his TT and got 3" fins and definitely also gets him going earlier.
I have a very hard and fast down wind current today in the waves. For the first few minutes i struggle to stay upwind until i got my rythem. Here's what i did.
The current was pulling down wind when the white was surge was pulling back into the sea. So i timed my runs to ride a wave in then run infront of the white wash upwind using the current to crank me higher upwind!. then i'd turn around a wang back out as the next wave pushed in. That way i was getting the wave current which helped my to also drive up wind.
So... take a little time to see how the water is moving. you may be able to work it to your advantage. if i got out of rythem i'd end up going with the current and no being able to go upwind.