I don't really push myself to the limit if thats what you mean. I consider myself still a beginner. I only stick to the beginner and intermidiate trails whenever I go. Plus I ride maybe 2 or 3 days out of the year at the most. Last year didn't get any time in though.
I just meant that as general commentary.
Your board is not going to be particularly dangerous, but as a beginner you should probably pick a board more suited to your dimensions. If you ride only a couple days a year you're just fine with the board you have. Keep in mind, you're probably not going to progress with that board though.
If at some point you take the noodle down a steeper hill, especially if it's choppy, things can get hairy if you don't know what you're doing.
And renting bindings and boots is so much of a pain in the ass you might as well rent the whole deal, especially since your board isn't ideal.