One problem with wanting to be liked is you agree to requests from others without looking at your needs. Over the years I have met many people who would automatically say “yes”, thinking that it would help them make friends and be liked.
Unfortunately, just saying “yes” means you get used and abused. Learning to say “no” is an important part of confident communication (or assertiveness). It is part of recognizing your rights and respecting your needs.
If saying no to someone makes them angry and stomp off – well what sort of friendship is that? They will go and find someone else to take advantage of. True friendship is based on recognizing each others needs, not just our own.