Help I'm stuck with my medical degree

A student with a baby, trying to navigate full time study and medical training is a tall order. As you say, the cost of living will impact, not sure without family or financial support you can cover rent, bills, food, travel whist being a student without both emotional, physical support that a baby needs. I think the studying might be a secondary issue until you firm up how you will both cope independent of one another. No firm answers I'm afraid.

One alternative I can offer is studying Medicine abroad. Do you have a degree? If so there is an agency called "Study Medicine Europe or SME" and they have a course in the Carribbean - St Lucia to be exact at an institute called Commonwealth University College of Medicine. For graduates you can take a 4 year MD degree which is approved the GMC and you can study the first two years which are the pre-clinical phase remotely. The attendance however is 100% compulsory whilst online and due to the time difference a full day of lectures would be 13:00 to 20:00 Monday to Friday. The clinical phase however will require you to attend an in-person placement for the remaining two years which can either be offered inclusive of the tuition fees in St Lucia or if you wish to have a UK based placement then at an extra cost of £400 per week. However given the latter is extremely expensive it may be wise to consider taking on placements in St Lucia. For able candidates there is also the option of fast-tracking the 4 year MD into 3 years. Course structure has a similar structure with the main difference being your pre-clinical and clinical phases are 1.5 years each and you wouldn't have many breaks like you would for the four year.
SME have also launched another University I think in Antigua which offers the option to study remotely for the pre-clinical phase AND offers hospital / GP placements in the UK at no extra charge as it is included in the tuition fees. This may sound amazing but the gag is tuition is about £18,000 per year! This degree is also offered over four years.
If you would like to find out more information about studying abroad you could look at SME and perhaps focus on the Carribbean university choices as you have already completed two years of medical school. I personally would not recommend studying in Europe because although the tuition and cost of living can be cheaper, the GMC does not accept their fast track 4 year MD courses as they are seen as transfer of credits meaning that you would have to complete six years of medical school on top of the two you have already completed.
I am not too sure of the transfer options in Scotland and do not know too much about the Scottish medical schools but I would recommend also contacting them to make them aware of your circumstance and find out what options, if any, they might have.
I hope this was useful