In my experience, you don't want to be too loose. You'll likely need to be very aggressive to sustain it, and even though you might become a big stack doing that for a while, you only have to miss once or twice to loose it all.
On the other hand you don't want to be too tight neither, because you won't have that many good hands sometimes for that to be enough and you also become very predictable playing only super hands, easily avoidable.
The secret is to find a balance in between. Play strong hands enough to be respected, but mix it with some marginal hands to confuse your opponents.
This balance will be defined by the field you're playing, your stack size and how much aggressive you want to be, among other things.
I myself, usually tend to be between 20% and 40% of VPIP. Sometimes it might be lower or higher than this interval, depending also on the hands you're drawing, but this is the interval where I tend to be confortable playing.
But I admire aggressive players that manage to play 50% or more of their hands. Some of them are really good, although I don't think its easy to get to that level of proficiency. You must be a very good reader, know ranges very well and dominate bet sizes on both preflop and postflop.
At the beggining I think you'll likely want to be tight, after your field understand that you're not "messing around" it'll become easier to apply some pressure and steal more. kkk