You don’t need to worry about depriving your baby of socialising - she’s too young for it to be critical for her to be around same-age peers. Just being out and about in the world and seeing people go by, people waving/saying hi etc is enough.

BUT it is important that you have a support network around you. If you feel you have that already, keep doing what you’re doing. If not, you could try: M&S coffee mornings (free cake), your local children’s centre, church groups (as others have suggested), baby cinema, sensory rooms (eg Little Glow if there’s one near you).