To be completely honest, you have a very unique voice. This can be both an advantage and a disadvantage at the same time.
More traditional voices are easier to mix because many of the effects are made to suit their processing needs. But it also means it gets quite repetitive.
Your voice doesn't sound strained or forced to me.
The tricky thing with unconventional voices is finding the perfect processing chain. I'd say start off with something along the lines of Pink Floyd's 'echoes' and start playing with the effects. It will surely be time consuming, but it will be worth it in the long run. The biggest part of being a singer is finding out your internal identity, and this is really difficult to do. Exploring is king, my friend!
In terms of plug-ins, I'd recommend iZotope's Nectar 2 for FX's and Melodyne for harmonizing (or Soundtoy's Little AlterBoy for quicker results).
Have a listen to these tracks, I think they might help:
https://youtu.be/YVpfGQ3TvPAhttps://youtu.be/ghb6eDopW8I