I've had a number of friends over the years who did porn. They basically had two things in common:
1) No real boundaries, and
2) Charisma to burn.
I don't know you well enough to be able to know about either of these as they apply in your case. And an extra caveat is that I've only known men who were in gay porn or women. I have never met a guy who only did straight porn.
The only people able to dictate boundaries are those who have so much to offer in one area that they don't need to be concerned with having any appeal in others. This applies to "gay-for-pay" top-only guys, and they have a really short shelf-life.
And, as a porn career is so short-lived (in most cases), it behooves you to accept as many opportunities to make as much money as possible. You will not increase your marketability by limiting your repertoire.
The only acceptable boundary for most guys is whether or not to do bareback. It's your life, your body and your choice, but I'd seriously suggest that you only do protected sex on camera.
Porn actors make most of their money by doing strip shows/club dates. This puts you on the road, removing you from friends and support, and leaves you very vulnerable to the temptation to do drugs. It's also a fact that these people do a lot of Escort work, because it pays big bucks, sometimes more than stripping.
But I have known many people who were Escorts (or just plain whores), and it's a really hard life. Personally I have nothing against prostitution, and think that prohibitionist social policy is a waste of time (to say nothing about its being blatantly hypocritical) and money. But understand that the only difference between someone who does porn and someone who does escorting is the camera being present.
As to straight modeling: I have no idea.
If by clubs you mean stripping, it's a very hard life to do long-term. It will jade you quickly, and you'll be doing things for money that you probably wouldn't do otherwise. What that does to you personally depends on your approach: if you keep it short-term it's one thing. But if you have no back-up long-term goal in your life, it's very easy to get sucked into a lifer mentality. And that's a pretty dead-end role.
