by dtc » Thu Sep 15, 2016 6:36 am
Apart from paddling more (ie surfing more), maybe just some general upper body strength work could help with paddling (push ups, pull ups, shoulder press, rows). Also make sure your paddling technique is good - I wont go into detail but you can google up tips. If (for example) you have a wide arm shallow paddle then you are going to get tired arms very quickly. General cardio fitness (running, cycling etc) can also help.
In terms of the boards, its definitely harder to catch waves on a shorter board and it will be harder to paddle. But you might enjoy it more - who knows. You can just have shorter surfing sessions or 4 good waves rather than 7 mediocre waves. Or it might be the opposite and you get no waves or just fall off all the time.
However, with enough surfing and enough thinking about what you are doing when you are surfing, you will end up having the skill to move to a shorter board. If you buy it and its too hard, you can go back to your other board for a few sessions or months and then go back. Use it for bigger waves and your current board for small waves. It will always be there.
By 'thinking about what you are doing' I mean make sure you arent doing the wrong thing and just getting better at doing the wrong thing. Watch on line instruction videos, even for skills you think you have, and making sure you are actually doing them correctly. Of course, for anything you are finding hard, you need think about how to do it right (which might include watching videos, getting coaching etc), not just hoping one day it will all suddenly work