Respected members, I know this question comes up on occasion and it is irritating. We tend to then treat the poor noob as a source of entertainement and ridicule.
Pte Pearce, let me talk to you gear ***** to gear *****:
When I joined and was just a mass of eagerness barely contained by my uniform someone steered me in the right direction and instilled the following priorities:
1- Mindset. (Read. Find the best warriors and leaders you can find and LISTEN to them.)
2- Training. (Show up, LISTEN, be your own worst critic, strive to find your every flaw and overcome them. Be humble)
3- Tactics. (Be careful who you listen too. There are some snake oil sellers out there. For now, follow the TTPs and drills your regiment is teaching.)
4- Gear. (I advise against buying anything for now. Look at what others are using. Research the internet. Avoid anything airsoft related. Go on Canadian Gun Nutz for some insight on firearms.)
If weapon mods is what really gets you going, I have some bad news. It will be years before you can do any, if at all. Weapon mods can happen, I get away with a few. But it all depends on the culture of your regiment, how much credibility you have and your rank to a certain extent.
Look at this way, weapon mods make you "feel cool" (and I am not saying that is not important

) but being a respected soldier/leader is way cooler.
Just my 2 cents.