Trying not to die

Coming out to my mom and starting 11th grade 2017

So August 28th I was planning to come out to my mom as being trans bc before school starts we where going to go clothes shopping and I wanted to get male clothes plus whenever she saw my legs she would tell me I need to shave.
So it was August 28th, the day before I start my junior year I was thinking all day about coming out to my mom as trans and I just couldn't do it. My mom had work at 10pm and so I decided to text her while she was at work because I didn't have the confidence to do it in person. So around 10pm I asked my mom if she loved me no matter what and she said "yes of course,why?" I told her because I'm transgender, she told my that I don't have to be afraid to tell her anything. I was so relieved and happy that I started crying. I thought she wouldn't be ok with it because she already has 4 boys but she seemed ok with it.

About a week after school started we went shopping and this time I wanted to go to the men's section, so I started looking and my mom didn't really like it but my aunt was ok with it even though she didn't know I was trans. My mom gave up and let me get the clothes so I was a bit happy that I was finally going to look a little more like a male. Then in October I asked all my teachers to call me Tristan and they were all ok with it but it took some time for 3 of my teachers. My algebra 2 teacher told me that I can change my name in the school records so I went to the office to get the paperwork. I asked my mom if she could sign the paper and she said when she was ready to, so I had to wait tell then. But she evenly did.