Is she interested should I keep texting her? And when?

Ve been taking so many losses when it comes to approaching girls (no more than 25)
and I'm sick and tired of it… My confidence and self esteem have been taking heavier blows with each put-down. I have approached so many girls of all different types but still to avail. So yesterday I approached a girl sitting alone in a corner and chatted up real good( I initiated the convo by mentioning her iphone then talked about her chinese heritage it went smooth) for about 5 min she had a class to be at but yet continued to talk to me regardless she was running late, ironically she was the one asking me questions I then asked for her number and she told me to text her later. Later on I texted her letting her know it was me so she could save it

Our text convo went like this

Me: Ni hao ma lol this dan just so you know.

Her: Hi, Chinese guy. I'm just going to take another exam. It nice meeting I will talk to you later.

Me: Lol you're funny bt okay

Her: :)

So far does it look like I'm at good start? Does she seem interested or nah?

Just give it time and chat a lot with her she might tell you hiw she feels

She probably just wants to get to know you more. I personally (not all girls) don't like texting guys too much because when you talk to them in person and you have all these conversations on text which makes talking in person awkward. If she's like that once you get to know her more the more she will text you. Don't over think it.