Trip to Iceland. Check.
I have just experienced what one might call "a trip to Iceland." Yes, I engaged in my typical tom-foolery and bought myself a flight to that empty island in search of adventure. And, adventure I found!
I took this trip sort of on my own. Some people choose not to travel if they cannot find a friend to go with. I say "poppycock!" to such thoughts. There is always someone to travel with. You might not know that person right now, but you can get to know them if you choose. You can find these people in adventure groups or, in my case, on couchsurfing. I met a girl on couchsurfing, we rented a car together, split the costs, had dinner together a few times, went to the local soaking pool, and stayed in a rural cabin for a night. No, we did not become best friends but it was nice to have a companion. Before I took this trip, I was on my own. I had no one to do things with. But, I quickly remedied that situation.
Never stop yourself from taking a trip because you have to go alone. You don't. Be gutsy and find someone. Trust you instinct as to whether you would be a good fit. If not, you can ditch them. If your choice is don’t go at all if no one will go with you – well, you’re selling yourself short. And don't sell yourself short.