Considering that you will be essentially making a life long commitment to a way of life....
Trust me one can take the witch out of the craft, one can't take the craft out of the witch - meaning once you get started you will always be casting - more often than not not fully aware you are.
Dedication (self initiation as others call it) is like going to get married - one doesn't just pick a random person and run to the altar and make vows, one dates the person, learn about them - as much as possible before dedicating self to that person for life. Traditions are going to be like people, you may have to kiss a lot of frogs.....
I strongly, very strongly, suggest you read a lot - various authors various traditions and find one that resonates with you in the truths that you read BEFORE you start doing spells, making vows, cleansing and dedicating yourself to a path. I seriously doubt you understand fully what it is you are are looking at. There is way to much false information (stereotype/myth/etc) about all traditions.
Understand that power corrupts, you may be attracted to the potential power here and have deluded yourself that you ain't. Power does that. You need to read, study, learn the basic rules - there are consequences to all magic - all. If you leap into this world you may do more harm than you can even dream.
DO NOT attempt spell crafting until you find that tradition that suits you. Then dedicate yourself when you are ready to commit for life to that tradition. Then start crafting.
Baby steps - little baby steps.
If at all possible find others in your area who share a similar interest. Some to many covens take part in initiating people, and even offering initial training and some solid experience to ease the new comer into this life.