Welcome to the forums, Vishwas!
I've only joined recently but I'll try to answer things as best as possible.
You seem to be very interested in spellcraft. A good place to start is right here on the forums or there are other places on the net worth peeking into. Most of them are geared towards a certain path or tradition, but it's not so hard to weddle out the key elements.
A good book in general, with little bias, is "Power Spellcraft for Life" byArin Murphy-Hiscock. You might not be able to get to it right away but I definately recommend it to anyone interested in spellcraft and just starting out. Very informative and well written.
There are also lots of places on the net you can get books. Mostly grimoires and tomes, which is beneficial if you have an interest in ceremonial magick at all.
http://www.sacred-texts.com/index.htm------>There are a few interesting ones here that might be of use to you. I'll let you decide, since my interestes lie elsewhere for the moment and I haven't gone through all of the texts listed.
As for building spells, hte biggest limitation is your imagination. Sure therer are tools and rituals and procedures, but if you're talking pure spellcraft sans tradition or path, you can write your own and it can be as simple or complex as you wish.
My workings usually involve me, some energy and a simple phrase I repeat a certain number of times (you said you've read about numerology--I find this helps when choosing numbers to repeat things). Sometimes I use a candle or a petition. All very simple methods and all equally powerful. Mostly its finding the one that works for you.
http://whywiccanssuck.com/links.html----->A few good links there...the site is mostly wiccan, to be warned. (IMG:
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http://whywiccanssuck.com/learn0.html----->A good primer on beginning practice into the occult. (IMG:
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Hope that helps a little!
BTW: I'm also aquarius, but kinda capricorn as well. (IMG:
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-jabberwock