HELP!!My phone is soft bricked and furthur issues given below.

I am not good at issues like this but I decided to change my stock rom and got messed up.
FIrst of all I wiped the OS accidently.
Second, the Recovery I installed won't work it shows some error like
e/ failed to mount something, etc.
Third my fast boot won't work ._.
So guys it would be great if someone can help me!