I am totally lost at age 20 with no friends,no goal don't know what to do i just sleep all day&cry like kid at night .I was inconsistently preparing for sbi clerk from 18 age but now feels it is impossible to crack as i am waste&inconsistent with lack in English .I feels like escaping&start all new
First of all, keep your hopes high. You've got the chance on this Earth as a human, that means you are able to do what you aspire, provided, you do determined and dedicated hard work.
Feeling lost and hopeless sometimes is common, but you need to keep your will power strong enough, so that you can prevent this sadness from overpowering your soul.
Confide in a person (you said you've no friends, no problem, make one or talk to any of your peer sibling/cousin). Believe me, opening your feelings infront of someone helps a lot. The person will comfort you and suggest you from his own point of view.
For English skills, use this lockdown period to gather and go through the online study material that will help you. Slowly and steadily, if you practice, you'll gain good English language skills.
If you feel that you can't crack the desired exam, keep it aside for a while and give yourself a new headstart. Pick up a different line and just get into it. Work as hard as possible. You'll definitely achieve it.
Remember, Humans can do anything!
All the Best.