Stop whining.
Join a couple LS. There are LS just for the purpose of SP parties. Simply ask if anyone wants to team up, duo, trio or form a full party for SP or if there is some party out there whom you can join.
Or solo. You can solo this game and getting R50 is not that tough you just need to know where to go (and since you play solo you have plenty of time to explore all regions) Now that not too many people play you dont even have to compete for the mobs.
If you don't know where to go, there are lots of guides and websites, you can google.
You can also do leves and behest.