Please advice,how to approach girl

Hi people of the planet Earth.
I know somebody will tell me:Just be yourself no matter what happens!-Yes i agree with that,but last 3 times when i was myself i was rejected.I don't think i m ugly(might those girls think that) i m not man with bad habits and dark mindset(might those girls think like that) anyway i m guy who is shy around girl when i want to date girl.That is my main problem.I never had girlfriend i just have two kisses with girl in my life and nothing more.First time when i tried to talk with girl that I fell in love with at that time i was 14 or 15 years old,firstly i told her that i fall in love to her after that we start to talk about things we like,what music we listen,which professor we hate most(we talked during class)and nothing tomorrow she told me that she have a boyfriend,but yesterday the day we talked she didn't tell me anything about gayfriend!I think she lied but that is not important now.Second girl i tried to date was so shy that she run away from me!I once entered to her class(we are not in same class at that time)and when i entered whe run away and her head was whole RED!Third and last girl i tried to date for now,we meet each other in facebook chat,because we didn't meet each other during school.When we chat it was seems like fine,but when i meet her for first time in school she just turn her head off me,second time when i was about to talk with her,few mins after that she run away to!But she really run away,very fast walking.

Did i done something wrong?I just behave normally as everyday,no whining,no insults,no screaming or behaving like idiot.I behave like i respect their time with me and respect her.
And now after long time i make decision to find girlfriend,and if i m lucky that one will not run away from me like last two(literally).

My weakness is low confidence when trying to date and being she i need to work on that.
I have femdom fetish and foot fetish and i m disabled to normal vanilla sex.Will she accept that or just make fun of me and then leave me?I know that is normal,but will that be normal for she?I don't have PIED but that is not much important now.

Now after 510+ days of nofap hardmode almost all girls looks beautiful to me and have magic in her way.
If you have any advice i will be grateful to read,some information about me because that have impact when trying to date:
-I have 19 years old,i still live with parents.
-I don't have a car,soon if God give i will buy car,i have drive licence.
-I have low/normal salary.
-Never had a girlfriend and still virgin.(If that is important i don't know)
I write that because very few girls want guy/man who don't have a job or car or leave with parents.