You've not been learning for very long, so I would absolutely recommend you stick to that if you can.
However, I just thought I'd share my experience of learning in an automatic.
I didn't learn at 17 because I didn't have the money, and this didn't change all the way through uni and for a few years after graduation.
When I was 24, my uncle became unwell and ended up as a double amputee (legs) and needing a lot of care. Of course, he had carers, but my mum and I shopped for him and did bits of cleaning etc.
It became clear to me that I needed to be able to go to him without being limited to when my mum was off work. If he needed me in an emergency, I would either have to pay for a taxi or get two buses, neither of which would get me there quick enough.
So, I took my theory test (which I had luckily been 'revising' for anyway as I was kind of in my mind that it was nearly time), bought a cheap automatic car and booked my test. My dad taught me to drive, and I passed 12 weeks later.
It was in the back of my mind that of course I could always take a manual test later and carry on learning that, but I needed to be able to visit my uncle, and it seemed the fastest way to do it.
Ironically, he died a week before I passed my test. So it didn't fulfil the purpose I thought it would .. but even so, being able to drive changed my life.
I know what people say about it being limiting etc, but I'll admit that now, 6 years on, I still haven't passed in a manual (or even had one single lesson in one!) and it's never been a problem. There are plenty of auto cars, even at hire places now, and it's just never been an issue.
So yes, absolutely persevere with manual because it's good to have the option of driving whatever you need to, but for me, in my personal situation, I was glad I passed in an auto, and have never had a problem since.