Surfing Waves

I bought some boots online, and once they're on they seem a good fit but they're quite a struggle to get on/off.

Is this normal or should I get the next size up?

Thanks

I hope you bought surfing boots and not diving boots! They should be snug and they should not slip around on your feet. The wetsuit goes over the boots to seal the top so you don't end up feeling like you have buckets on your feet!