What are some great credit card management and budgeting tips?

[Gerry Deida]

In summary: I'm kind of new to credit cards. I am an expat in Bangkok and I have this credit card right now:

However, I would like to know if you can share some good tips with me on how to manage it properly, and more importantly, how to set up and keep a budget.

I already know that I should use my CC for things I need, not for things I want. But I have to reckon that sometimes I lose control and end up doing things I did not want to in the first place, therefore, I know it is very important to budget properly. 

So that's all, I want to hear what you guys have to say. Thank you all!