Remember to tuck right down if a lorry is coming past on the other side of an exposed road. The crosswind can hit you in a sudden gust. And passing lorries on the same side suck you in towards them.
I've realised that for me, as an experienced beginner on a reasonable length ride, dropping a gear in gusty weather helps: if you are in the right gear for inbetween the gusts you are in too high a gear for the gusts and you can't maintain your cadence, this in time wears your legs out and your average speed slowly drops. It feels less exhilarating but it means you have the energy to go out on your next ride.
Having said that, it helps to have some resistance to help control the bike when a gust hits.
Please feel free to disagree.