In terms of uni and exams, you may want to discuss with your personal tutor what options you have - for example it may be possible to "intermit" or interrupt your studies for a year then return, which might be worth exploring as an option if you feel that you need more time. This may take different forms - you might just be allowed to defer the exams for another year and just sit the exams alone in the coming academic year, or you might then "restart" first year after having a full calendar year "out", depending on the uni policies and what might work with you.
Of course it is worth bearing in mind your current year cohort will then be in the year above (and may have graduated when you rejoin, depending on what year of your course you are in and how long it is). This can be a consideration if you have a strong support group among your cohort at uni that would then be lost, for example. From the sound of it you are in first year now, going into second year - so the people you met on the course will presumably still be there (entering third year) if you interrupted your studies for a year though. Also you will have the opportunity to get to know new people - particularly if you end up going into first year "again" it's a bit easier (compared to doing so and going into second year directly where people may already know each other in that cohort).
On the financial side, if your father's passing has affected your family's financial situation, this is something that should hopefully be reflected in your student finance entitlement. You may also be eligible for bursaries that you may not have been before. Also worth discussing with your uni and perhaps student union about student support funds/student emergency funding if needed!
Also as noted, it is worth reaching out for support outside of the above - speaking with your GP could be a good start, and also spending time with family and friends. There may also be groups that meet for people who have similar experiences that you may want to consider (your GP or student union may be able to point you in the direction of something in that vein potentially).