grr, newbie eh? a pox on thee!!! [lol, i'm joking]
you need to start slow, the whole walk before you run thing, you need to start with charging and grounding energy. both these can be done in MANY ways, whatever works best for you. the basic ways to charge are meditation, dancing, jumping, chanting, or singing. and for grounding, tapping the ground with your hands, stomping your foot, lying down, or falling down. as long as you feel the energy entering and leaving, you're doing it.
after that, you need to cast a circle [some spells, like protection/purification of the house, or when cooking, you don't need to, but generally you should.] figure out what spell you want to do, gain energy, cast, ground, open circle.
try starting with candle magic, it's rather simple, just make sure you don't blow out the candle, you snuff it out. blowing out the candle typically undoes the spell. [same for the watchtower candles i think, we just always snuff the candles]