okay, well first of, welcome to YouTube!
here are some things you should know, the reality of it all:
1. it is HARD AS stuff to get subscribers off of Blockland videos (i have 90 subs from them)
2. Make sure you have a good video editor, NEVER USE WINDOWS MOVIE MAKER
3. Blockland news, honestly noone gives a crap, i have made a topic a while ago and all i got was this Ducky Duck guy being a richard to me, and this other guy who told me to do it and not ask...
4. Make sure your video recorder to good, Fraps is good, Make sure you buy Bandicam, etc.
5. Be open to your audience, shout out subscribers, and be energetic
6. Make sure you are playing games that you like, it will be better in the end
7. Don't please lord don't record these 30 second videos of you playing on a server, they are boring as hell and are cheesy
8. keep in mind it is hard to post everyday, if i posted everyday, i will admit, i probably have more subs than i do now and would be bigger, and if you don't end up posting everyday, just make a vidoe telling them why you can't
9. Make a good channel trailer that introduces your channel to your audience
10. Have Fun!