Gaming reminds me of my recent ex, hurts to go out

My ex-girlfriend broke up with me three weeks ago and I'm being forced to get over her. Whenever I even think about gaming it reminds me of when I was at my peak of pickup, which was how I pulled her and began our relationship. I fell SO fucking hard for her. Our relationship was beyond perfect. My eyes are watery just typing this.

I guess my question really is how long should I wait and cope with this break-up before I can naturally go out with confidence and have fun again, without having to force myself to go out. I've forced myself twice since we broke up, and both times backfired. All that happens is I walk around downtown seeing all of the clubs and bars we used to go to together, and I just can't get myself to a positive frame to socialize with anyone. I'm miserable, and I thought taking action could push myself out of it but it's not exactly working.

I would love to hear other people's stories on their most traumatic break-ups, and how they got themselves out of it and thrived. Do I just need more time?