Welcome to the forum
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I would like to go back to school but even still there's no guarantees I could stay afterwards. Though it would be nice to be there for a few years rather than none at all I would like to think that there is more possibility than I am realizing.
Feeling pretty down about it, is there any hope?
Don't be so discouraged - your going back to school plan sounds pretty good to me, and there's definitely hope for that.
Studying for another degree in the UK would give you a chance to live in the UK for a couple of years... and if you have a degree from a UK university and are still in the UK on a valid Tier 4 student visa, you can qualify for a Tier 2 work visa without having to meet the difficult requirements.
In order to be sponsored for a Tier 2 General work visa, normally you have to meet one of these 2 requirements:
1) The job is listed on the Tier 2 Skills Shortage List
or
2) The job isn't on the Skills Shortage List, but the UK company has advertised the job across the UK and all other EU countries and hasn't been able to find a suitable candidate in Europe... so in that case they can hire you (this is called passing the Resident Labour Market Test (RLMT)
However, if a candidate has a degree from a UK university and is still in the UK on a valid Tier 4 visa, they don't have to meet either 1) or 2)... because their UK degree is enough to allow them to qualify for Tier 2 sponsorship.
So, if you can get accepted to a UK university, and you have the funds available for the visa (1 year of international tuition (about £15,000) plus 9 months of living costs of either £1,265 per month if you will be living in London or £1,015 per month outside of London), you could come to the UK as a student for a year or two, then see if you could qualify for a Tier 2 visa to stay.