I'm a daily smoker and have been for some years now, but the amounts that I smoke is relatively small. I'll switch between my bong, joints and a cartridge. If I'm smoking out of a bong, I'll smoke around 2 small bowls a day. If I'm feeling a joint, I'll maybe have 1 a day. With the cartridge, I'll take a few puffs every few hours or so.
When it comes to smoking and skating, I find that it calms my nerves and loosens up my body up before a skate session. I'll normally roll up to my local and smoke like half a joint or take a handful of rips of a cartridge (depending on if there are children around) before I go into the park. Although I enjoy smoking before a sesh, it's not a deal breaker for me. Some days I'll show up to the park and skate around for an hour or so, take a little smoke break and then get back to it. Other days I won't smoke before or during the sesh.
I'm pretty fortunate that I have never dealt with the anxiety that a lot of people have with weed. The only thing weed related that gives me anxiety and full on panic attacks is edibles. Tried them a few times but have always had bad experiences. The one thing I still can't wrap my mind around is how people slam beers and then skate. Even after a single beer, my balance on a board is completely off. Not sure how the hellriders do it but more power to them.