treat ya longboards like a good old fashioned used car (or lady) that you are always looking to upgrade. Then you never get bored.
If you have only been surfing for 2 yrs and are bored already then maybe you have some bigger problems to address
. May I suggest you a book yrself on a boat trip to early season Ments or Northern Sumatra - if you come back still bored then you know its time to take up cycling or golf. I would think that you will come back super stoked on life or maybe you may just extend your trip and not come back at all.
Alternatively maybe check into the room across the street which is mostly dedicated to people who got bored surfing or who never got into it and so needed something else - maybe they can give you some inspiration - I hear flat water paddling is great fun
yeh will get tired. your arms will ache,your neck will be sore and your legs will be burning from the amount of waves you get. 
