The important point is not to give up and walk away, playing with ‘better’ players than you will challenge you for sure but it will be a really good way to improve the skills you feel you lack. There is one exception to this of course, you have to be able to discuss the structure of the music with the other players, if they won’t stop and help out, give you pointers and stuff then fvck ‘em. I’ve played with some brilliant players who expected you to be as brilliant them right off the bat without the slightest help or advice, I find these kind of players fall into a general wider category, that of cnuts. Inside musical circles or outside I try to avoid cnuts at all costs. Play with more advanced musicians for sure, no better way to improve, but don’t think you have to tollerate cnuts. Musicians who sneer at those not as advanced or are intolerant of other's abilities or just plain unwilling to help are to be avoided.