it can be done, just finished a degree in archaeology,
useful things to consider,
accomadation, being in student digs or in a house with students sounds like fun but the constant noise can drive you barmy after a while, avoid too much socialising, it can seriously wear you down,
routines are good, as well as getting to know the local area you are in, stress from exams study and such like can be a big pain at times but there is plenty of help in most modern universitys, the other one is quiet space which is almost essential, dont fall into bad ways in the first year, hanging around with people and trying to socialise is good but too much and you fall behind on work,
one thing to think about though is there will be times of being hacked off with study, its good to take a break from what your doing for a while to let your head clear so you can come back to it, another useful thing is a bit of software, claro read, can just sit and let it read back through what you have written, good for checking everything makes sense etc,
the other one is sleep and rest, these are two essentials you shouldnt go without, the other one is good food, med students like to have a wild time of it, dont try to keep up with them, and dont fall for the usual student bad habits, doesnt mean dont have fun, it just means you will get worn out quicker and take far longer to recover from something they will brush off in a day, see what plans and help is available from your uni and what support they offer, and go for it, you may not need it right away but knowing whats available is good, another thing dont get put off, go for it and persevere.