It's usually understandable that a parent doesn't allow their child to have a phone until it's only absolutely necessary. Children should learn how to develop without the reliance of this kind of technology, as it helps with vital skills for their future life, as well as helping protect the child against harmful consumption of information that isn't uncommon for a child to encounter if they had unrestricted freedom to everything. Additionally, strict parents are a good signifier of a well developing child. Studies show that a child who has marginally strict parents (there is a limit to having too strict parents, where the child will be negatively impacted in several aspects, where general behavior and academic achievement is affected negatively.) have a greater chance of becoming well off in life in the long run. I believe your situation is optimal for child development, and it only takes acknowledgement to see it. Feel free to sway me to side with you, or tell me that your parents do indeed fall into the "too strict" category, I would be happy to provide any assistance I can.
Also, you seem to be an amazing person! I mean, having a boyfriend at 12 isn't usually advised, but it's okay as long as you have the ability to employ matured and adequate emotional intelligence in your situations and interactions, and recognize that you are in a positive symbiotic relationship to a degree that you will benefit from eachother. I want to wish you luck in whatever you may pursue in your future, it certainly evaluates as positive.
