Ruby, here's what I'm going to suggest for you: a physical adept. A physical adept is someone who has magic, but rather than casting spells, is able to channel that energy through their bodies to do amazing things.
All you have to do is pay 5BP for the Adept quality, then buy the Magic attribute in the same way that you buy the other attributes like Body and Strength.
You then have a number of Power Points equal to your Magic Attribute, and you can buy the powers listed on pages 195 through 197 of the 20th Anniversary core, and 174 through 180 of Street Magic if you have that book.
I imagine you only have the core, so I'll recommend taking Magic 3, taking Improved Reflexes 2 and Kinesics 2. That'll make you faster than most people and able to do more stuff in combat, and give you more social talents to be able to be more persuasive and intimidating when you want to be.
Edit: Physical Adepts don't work very well if you have implanted tech, though. So if you have that, you don't want to be an adept.