Let's be candid for a moment. There is nothing you can ever do to OVERCOME the loneliness you feel. That's the price you pay for blazing your trails and being a better version of "you".

One way to handle the loneliness is to do something that makes you feel powerful: personal exercise, a hobby, making phone calls, etc... The more you can GIVE to others in the exact same position as you the better you will feel.

Help someone else feel less lonely. Along the way you'll feel better yourself. :-)