Hi hun,
I travelled there by train but my friend picked me up.
I really dont think its a good idea that you travel home by train. You might get knocked and hurt if its busy and you may feel quite sick and dizzy afterwards and will not be well enough to be getting on and off trains especially if your by yourself. I dont even think the nurses will let you leave and get a train.
If you have no one that can pick you up. MYA offer a car service where they will arrange for a car/tax to pick you up talk to you pc
xx