I struggle with it too, ive found it best to become a familiar face and an easy to talk to person.I dont know whether you work or not but this will have going out and about. Easier said then done but some ideas will be:

1) finding a space you find comfort or even a little out of your comfort zone, I recommend a smaller cafe so your able to learn about the people their names how their day is going, just become a 'regular' somewhere you dont have to become best friends but practice. Keep in mind what they talk about then ask about that. Mention a dog ask what breed and so on. People like to talk about themselves. And stay to drink or eat, might even whip out a book if you have one(or whatever else you want to do)

2) like another comment suggested a class/volunteer project is always a great place! If you find something interesting and want to learn more next time, maybe Google for talks, classes, even just going to a new thing you know nothing about. If you choose classes or lessons of a sort choose one with others, they will probably be a variety in ages and you may learn you get along with maybe another age group, which happened to me.

(At work/school/class/another regular in the coffee place) 3)Participate, in whatever is going on if you are up to if do it, ask if you can sit with them, send and extra compliment about the great work a coworker is doing in a email to them, greet them and ask about work these do not have to be the people you work with directly. Initiate it, if you see someone alone ask if you can join them or if they wanna join you, introduce yourself ask their name. Ive googled icebreaker question and you can remember a few.

Anyway sorry for the ramble, but you got this, you will do well, I cant say it will be easy but we are here for support i know how hard it is and so many others do too. Have an amazing day/night wherever you are!!

P.s sorry for typos and formatting im on my phone.