Hi. You have stated that u feel like a loser. The day u were born itself u were winner. you need actual self realisation which is lacking in you. Also many thousands of people are nowadays lacking in it. Nobody is perfect in every field. Same way u will have any good thing within u. Try to list out and write ur positives and good characteristics about urself. This will pave way for u understand best qualities in u. Age of 48 is not a constraint and hence u can develop urself at anytime. Read, write , think and implement Ur ideas. Others may know many things. From today u also spend Ur time usefully to know more of general knowledge and specially urself. Boost Ur confidence and dont think wat others think. You are a intelligent person and dont doubt urself. You can take telephonic counselling or online too and talk in personal. Self concept will be boosted by a counsellor to u.
Next Steps
avoid negative thoughts. talk to people. meet a counsellor . have few sessions to develop urself
Health Tips
think positive and be positive. feel best about urself . others will feel best about u in future.