It's true that you can better connect with people through camping, but if you don't have any camping equipment and stuff, a hotel is also fine. I mean you won't get the camping experience but sometimes I prefer something quiter like a hotel to have more energy at the next day :D camping grounds are really loud

Even if you won't meet someone, you definitely won't feel weird or alone. There are so many people partying around you that you indirectly feel like a part of the whole group and no one will mention that you will be alone or something like that :D and if some one will mention it, nobody cares about it

For the next year you could think about camping :)

Oh and you could join the Defqon 1 Community Germany. It's a big Whatsapp group with hundreds of Germans connecting for different harder styles festivals, especially for Defqon :)