Do you think I should go abroad alone?
That is brave of  you. What makes you want to go it alone?
I feel an immense freedom when I'm alone
well then, I say go for it!  If you feel happier travelling alone, that's totally fine.  Have fun!
I will. I feel free and confident. I don't need anyone to make me feel good
Have a great time. Traveling alone is great fun and you just have to take precautions to be safe on your own.