On the golden rule

If you're going to sin you might as well do it to the best of your ability. I would at least gage the consequences of your actions and try to look at that possible choice in an objective light outside of your current subjective feelings. Your emotions change often.. It sounds to me like your mind is made up already and nothing will stop you, but try to think about the repercussions of your actions. If it's only personal; meaning you will only hurt yourself, then that's one thing. If you don't care about yourself and your future (i.e. you're suicidal, or at least don't care if you die), then go ahead and do it, as long as it doesn't hurt others. But remember, if you do something to jeopardize your own life, then you hurt all those around you who love and care about you.

But if it hurts other people directly, then you have no right to do what you're planning on doing. Whatever "sin" it may be.

All sin is "guilty" sin in a way. Regardless of whether you feel bad about it. But then, some people do things that others consider sin and they feel fine about it. Each person has a different barometer of sin. But in general follow the golden rule. If you hurt others in any way then what you're doing is without a doubt wrong and you should stop or not do it at all.

In general things pertaining to sex, entertainment, and making money have been deemed as "sinful" in the religious communities. However harmful these may be potentially, in reality these these are often benign and harmless. It depends on how you use them, again, think about the golden rule.