Too young to commit ?

Hello everyone, just needing some perspective on the current situation that I’m in, I’m not expecting any solutions but like i said maybe a different perspective would help

For some backstory me(25M) and my girlfriend(25F) met about 5 years ago when we were both in uni, we were doing different courses at the time but met through a mutual friend and kinda kicked right off, it was amazing when it started, we had so much to talk about, so much fun doing things together and was just an all round healthy relationship. Then after about 10 months i had to move campuses to a different part of the country which also happened to be my home state, it was about a 3 hour drive from the city where we were originally. Even then i guess we tried to make it work and it somewhat did work, but i also felt my mind slowly getting more and more disconnected/dependant from/on her, i guess i just started reverting back to my emotionally independent day, but i just went with the flow and didn’t really acknowledge it as an issue at all. I still tried to be there for her as much i could and make her feel the best that she could albeit the distance, but i was never really considering by gradual detachment at this stage at all. Her gratitude was enough for me to believe that there was absolutely nothing wrong with my state of mind. Anyways that went on for a couple of years and then last year I had a unexpected career opportunity overseas that popped up,and given that it was somewhat of an offer you couldn’t pass, i took it (for some context i work in healthcare) and everything happened really quick then, within a matter of months i was on flight to a country that was very far from home. I didn’t think much of this at the time but that would have been really hard on her, but i just went with the flow and reassured her that everything will work out. Throughout the year the relationship was definitely strained, it was my first job and all the responsibilities had taken was really getting to me, and i expected her to understand this but it didn’t really seem like she did. She didn’t really get the high stakes of my job and anxiety and stress that comes with it, but again i just went with the flow because i never really thought id be capable of breaking up with her although there were multiples times i felt like i probably had to. She does have a lot on her plate as well including a parent who’s diagnosed with a sinister disease

So fast forward to the last couple of weeks, I’m nearing about a year since I’ve moved here and she is beginning to raise some questions in terms of our plan for the future. This is complicated because now I’m in a different country and there’s lots of logistical barriers, the easiest way would be if she gets a spouse visa, which obv means we’d have to get married, and this is where I’m just in a really really tricky position. Do i love her ? Yes i do, i care for her immensely but i also feel like I’m too young to make a commitment like that. On top of that having someone move across the world for you is very very heavy burden, what if she doesn’t like it here?This is my first relationship, I’ve never been with anyone else ever before. She has and maybe thats why this decision is easier for her. I don’t want to be backed into a corner. This relationship does have many flaws that i never expected my dream relationship to have. When i tell her this she always assumes that i just want to bail out and sleep around/have fun. Its so frustrating. Its obvious that the only answer to this is that I have to pull up my pants and make a decision