Is it your height and not being good with words? Those aren't really major problems.
Height of course can't be changed, but you can look for a petite girl. Actually girls like that are the most feminine. Find one who's petite and just a little plump—when you hold her, that feeling is really... anyway, what you're looking for is a wife, not a model.
Fang Shao's talent is above mine. Being poor with words is probably just from lack of habit, or maybe some interference from low self-esteem. Let me give you a few suggestions:
① Don't pursue girls you already know at first; instead, have someone introduce you. The advantage is that if it doesn't work out, you probably won't run into each other often afterward, so it won't be too awkward... and the other side also comes prepared, and is often a fairly traditional girl. Those points are all very good.
② First go in with the attitude of making ordinary friends, and leave more time for both sides to slowly consider whether to develop things further. The first time you meet, you must speak first. Mostly talk about work, profession, study experience, and other not-too-personal topics. Take the opportunity to understand her attitude toward work and life. The important thing is that once you notice her good points, immediately show your appreciation. At the end, ask for her phone number, and ask roughly when she'd be free. If you can still ask her out next time and she agrees, that means she at least doesn't dislike you, and there's a chance to develop things further.
③ Don't start by giving flowers and saying "I love you." That's the sort of thing Qiong Yao uses to fool little girls. Doing that before even an ordinary friendship has been established amounts to being rash, and most smart girls will reject it outright. As for those two things, I've never done them either.
④ When you're just starting to meet, generally pick a place with lots of people and good lighting. Best if you can talk while eating. The atmosphere is more relaxed and you can understand more. Only after you're familiar with each other can you really talk about love.
Just experience talking, don't laugh, because my situation used to be pretty similar to yours.