Just started approaching....and my background story....

I came across all this pick-up shit early 2013.....But haven't started approaching unti early this month....I'm having trouble approaching while there's people around...but can easily approach if it's only the chick and I together.....I tried going out a couple of times at night but couldn't bring myself to approach let alone go inside the venues....I just walk around and go back to my car.....I cant shake the feeling that what I'm doing is weird....I'm also doing this alone....

I don't really have anybody that can go wing with me since I lost contact with many of my friends in the past couple of years......I'm in pretty good shape and I'm pretty good looking from what girls have told me.....I have no problems looks wise....

I've never actually had to approach chicks in middle school or high school....I was pretty popular for fighting alot and selling drugs ha and could've probably fucked 30+ chicks in both high school and middle school....but I was too scared to do so (correction) until senior year when I started to not give a fuck......But now that I'm out of high school I HAVE TO APPROACH IF I WANT TO GET LAID.....

I deleted my FB and cut ties with my old social circle....I've fucked a few chicks in high school (senior year) went to lots of parties and shit....and was even doing really well with chicks my senior year.....I was partying and fucking ALOT, probably the greatest time of my life.....but alot of shit happened personal and relationship wise which really fucked me up emotionally all in a short period of time...

I went to juvenile hall for 8 months which made me even more of a badass socially when everyone found out...got out and fucked a few more females that i knew from high school, easily.... but getting locked up kept me from joing the marines and getting into law enforcement (due to my record), which was my "purpose" in life ....I felt "lost" after I found out I couldn't enlist and just spiraled down from there....began doing alot of coke and ecstacy....started failing my college classes....I got into fights(verbal) with close friends and family which also fucked me up emotionally....which I wasn't really able to handle....I started isolating myself from everyone....and now I'm here....

I know what it feels like to be a boss, good with females, a badass social circle wise and just overall happy....but I've lost "it" from so much fucking isolation.....I want to get that shit all back......It's the worse feeling knowing you used to be a "certain way" but no longer are.

Any way to get over feeling like a loser for going out alone at night?  I feel fucking weird going to clubs and bars alone just standing around and hitting up females.....but i know people really dont give a shit....I know I gotta fix this shit myself and when I do fix it I'm gonna be a fucking boss.....any help would be appreciated....