Thank you! The best tip I can give is to fly slow, especially at the beginning. The more you accelerate, the faster you sink.
I can recommend to stay in the area of the takeoff until you have some altitude - we always attempt to place it on a hillside, and turn the prevailing wind to face the hill (in real life, you would select the takeoff based on the wind, but we can do the opposite) - so there is a high chance that there is some, or a lot of air rising. Then, when you have enough altitude, everything becomes less hectic.