I think everyone thinks I was being manipulative by saying I was suicidal just because I didn't go through with it
Why do you think people think that you're being manipulative?
Honestly they were not wrong coz I really trying to seek some attention.
Emotional blackmailing of people is not right. If you have any problem, you should discuss it with your friends and family instead of manipulating them.
Cheers, I think I've learned my lesson and won't do it again
Good that you know that it wasn't a way to seek attention successfully. Therapists out there will help you more, get an appointment to see one if you feel you are in need of more attention from whomever it is.