Since we are all sharing advice, here are a few thoughts regarding your paddle:
First, be careful not to get a paddle with a large blade. Around 82-86 sq in will ensure you don't get sore shoulders. Bigger ain't better. Stiff shafts can also result in sore shoulders.
Second, getting the length right can be tricky - try an adjustable. This one feels about as good as a "normal" paddle but very easy to adjust and transport. Size guide: S: 76.6 sq in,
M: 85 L: 94.6 (I don't sell them)
www.surffx.com.au/collections/starboard-sup/products/2024-starboard-enduro-carbon-paddle-2-piece-adjustableThird, try to keep the shaft vertical when paddling - not at an angle. It will help you go straighter.
Fourth, and most importantly: your paddle is your key to stability. Keep the blade in the water as much as possible. You will be amazed how well you can recover after a wobble by moving the paddle forward/backward, side to side, and even up and down - especially with your knees bent. Your paddle is your third leg.
Fifth: when you fall off, lay the paddle across the board at right-angles with the blade furthest from the board with your left hand on the shaft as you climb up - it acts like an outrigger and will provide stability. Here is an attempt to sketch what I mean...