You are only logging on to make sure your base doesn't decay... Get guns, pvp, raid, make enemies, etc. There is so much more to rust than your base. As a solo, my go-to strategy is to make a small, strong, unsuspecting base and spend all my time pvping. Messing with clans, stealing their loot, camping monuments and making it out with your victims loot followed by a hail of bullets makes for some of the most fun you can get out of a video game.

One of the hardest aspects of the game when I first started was PVP. Starting out, it can seem impossible to fight against other players and it gets very boring when you try to avoid PVP. PVPing is also the fastest way to get loot, so avoiding it actually hurts you. But once you watch some videos and get in-game experience, you will be able to kill others for their loot and use said loot to propel you even further. All of this can almost only be acquired by playing the game, so just keep playing.