Hi there!
From your post, I'm assuming that you've just finished first semester of second year, so there are 3 semesters left until you graduate? If that's case, it is very likely that you could get good grades by the end! It will depend on the way your university deals with degree classifications - so you will need to find this info either on your uni portal, website or by contacting your course leader.
For the purpose of this post, I will assume that first year does not count towards your final degree mark, and that your second and third year are worth 50% each, and that your second year grades so far have been 40%. With this info, your current degree grade is at 10% (including the 3 semesters that you have not taken). For your final grade to be 60% (a 2:1), you will need to achieve an average mark of 67% for the next year and a half. For your final grade to be 70% (a first) you will need to achieve an average mark of 80% for the next year and a half.
Again, please note that these numbers will be different depending on your Uni's Degree Classification Rules, so make sure to check them out and do the calculations for yourself - this is just a rough estimate using the 50-50% way.
Good luck and remember to believe in yourself!!
Jorja (LJMU Student Rep)