It's probably not a good idea to start dating while you're going through a divorce. However, here are a few tips I would suggest for dating. First of all, I would say that you cannot put pressure on yourself. Not every encounter with the opposite sex is going to go well. In fact, if everything went well all the time, there would be no need for advice like this. The best thing you can do is simply not worry about whether or not you are going to be successful with the opposite sex. In addition, by taking pressure off yourself, you will be more comfortable, and appear more confident to the person you are approaching.
Second, I would suggest not thinking too far ahead. When things go well on a first date, it's easy to convince yourself that you've found the one and that everything is going to be wonderful from here on out. This is a mistake because it can lead to false expectations and disappointment. No one is absolutely perfect in every way, and sooner or later you are going to find out another person's faults. Additionally, getting ahead of yourself will only put more pressure on you not to screw things up, which inevitably will lead to actually screwing things up. Take the moment for what it is, and nothing more.
Third, I believe you should be honest with your intentions. Don't overdue it, just be straight about what you are looking for and what you are not looking for. If this leads to things not working out, no big deal. It's better to lose a chance with someone who is not after what you are after than to spend time hiding your intentions and then getting frustrated when you don't get what want. It's always better to know things aren't going to work out up front than to find out after you've become involved for several months.