Wedding help?

So me and my boyfriend just got engaged and were speaking of wedding plans. I literally am 22, graduated maybe 4 years ago from school and have no friends. I’m very quiet and he’s the same. All we have is families. How do we have a nice wedding without bridesmaids or best men? What should we do and where would It be best to have not a huge weddings. Won’t it look weird? Really stressed over this and makes me not even want to have a wedding but I recently lost my dad so I really want my mom to walk me down the isle. But, all we have is like my mom my sister my brother and my uncle and aunt. he only has his grandparents and maybe 5 other family members. Super stressed! What would you do? Any experiences??