Drugs always exacerbate my tendency to experience SP.
To the OP: I've had it ever since I hit puberty, and sometimes it has been quite disruptive - so I understand how frustrating it can be. You can get 'used' to it, and develop techniques to snap out of episodes quicker without having to fully wake yourself up and interrupt your sleep cycle, as well as finding ways of getting back to a deep sleep wihtout constantly falling back into a recurring series of SP.
One thing that used to work quite well for me was to open my jaw as wide as I could (of all the parts of your body, you should be able to move it at least a little bit) and then roll it open and shut until my body woke up. After a while you learn to trigger your body's waking mechanism without having to use the initial movement to set it off. It can get to the point where you can wake yourself up after a split second.
Learning to go back to sleep can be trickier - especially if you're like me and fall straight back into an episode of SP. My SP episodes are always immediately preceded by a weird 'brain zap' sensation. Try to work out if there's any tell-tale sensation that heralds SP for you. As soon as I have these brain zaps I wake myself up, move my body a little bit, and then try to go back to sleep. If you only wake yourself back up a little bit, and don't achieve full waking consciousness, you'll most likely drop back into SP. Provided you can relax and drop back into sleep after having tried to wake yourself, you should be able to fall back into your sleep cycle quite quickly - which is alot less disruptive than half-waking yourself, having SP, half-waking yourself, having SP e.t.c. all night.
After a while, it becomes so easy to interrupt SP, or stop it before it happens that it no longer is disruptive.
I must say though, I do enjoy the strangeness that accompanies many SP episodes - talking to strange entities, having false awakenings, having OBEs. Sometimes I just let the experience go, instead of stopping it - except for the ones where I'm 100% awake, but unable to move at all and feeling like I can't breathe - these are the ones where it is most handy to know how to snap out of it promptly.
Sorry if this all was a bit rambly, the PST I'm drinking is cruising away with my brain.
Peace out
and super perfundo on the early eve of your day