I can delete some of your images to free space for new ones, but unfortunately a hosting service is the only way to add as many as you like at any resolution.
Did you try IMGUR and have issues, or are you accessing us on a mobile device and cant get IMGUR to play the game for you?
We want to help, so you can get up as much stuff as you like onto the forums.
IMGUR is 100% free to use, and has proven to be the best results for the most members, hence why we recommend it.