Yes I enjoy solo anal masturbation. My last masturbation actually was anal play.
I must highlight a health factor here though, using a dildo for anal can be problematic for your vagina, if it isn't cleaned properly. If any poo particles/bacteria from your back passage enters your vagina then you can get infections/UTI's etc. (Hence why we wipe front to back) I really advise against going from back passage then into vagina with the same dildo. If you use this particular dildo again for vaginal use then please clean it thoroughly/disinfect if you can.
I have a seperate glass dildo especially for anal which I reviewed a few days ago:
I tend to prefer experimenting with anal play with my partner rather than alone but I have done it solo before. It all depends on what mood I'm in and where that takes me 😊