<human>: Give me a shortened version of the text

My very serious relationship with a girl [24 F] ended a few months ago. We dated for 5 years, lived together for 2.5 years, and had a dog together. I was pretty close with her family and she with mine. So it was very serious. I definitely thought we were going to have a life together until things kind of whimpered out over a period of six months and we called it quits.

I feel like I should start dating now, but I really have no idea how to do that. I didn't have a ton of experience with it before my ex. Socializing with people I don't know does not come very naturally to me, especially when it is girls in a dating/flirting context. Any "skills" I may have had are incredibly rusty after 5 years of not approaching girls in that way.

I recently found out that my ex is seeing other guys, which just makes me feel shittier for not even making an effort at it so far.

Any advice or encouragement you might have for getting out there again would be appreciated.
<bot>: My 5-year relationship ended. I don't know how to approach dating now. Looking for any advice/encouragement to get myself dating again.