You can be a gentleman WITHOUT being clingy.
And yes there is real advice on these forums. You have simply ignored what advice there is and constantly posing the same questions. You can either choose to ignore or to take our suggestions on board.
Post again and only again when you have asked her out. Further speculation on this topic is useless.
Also I agree with the #YOLO sentiment that has been stated by (Ozko?). You will only lose a friend IF she rejects you AND you make a big deal out of it. If you carry on with this person as you always have, despite how 'awkward' it may be, you'll be fine.
/rant.
Not posting any more advice on this forum and I suggest that people stop giving OP attention. Yes, you may interpret this as bullying but we have given you sufficient advice, advice that (judging by the amount of time you have expended asking questions through your 1000 threads) you have ignored. It is purely a confidence matter and quite frankly you don't have it. You can never be 100% sure, part of the fun and the thrill is in finding out.
Based on the 'evidence' you have given us I would say that it's a sure thing. However due to your personality I'm not so sure.