Should I drop Biology?

So, I am currently in Year 12, studying Biology, English Lang + Lit (combined), Religious Studies, History and Welsh Baccalaureate (similar to an EPQ).
I love all my subjects other than biology, which I find incredibly challenging due to the large amount of content and workload. I have recently thought about dropping biology, for various reasons:
. I do not need it for the Uni degree I want to pursue in the future.
. I am not enjoying it at all.
. While my other subjects come naturally to me, I find it very difficult to find motivation or interest in bio.
. Without bio, I could put more work into my other subjects and could also focus more on wider reading.
. I don't know if there is much benefit in continuing with it.
. I know others who have dropped a subject and are currently doing 4 (including Welsh Bacc).
However, there are also reasons I am conflicted about this situation:
. I am worried that it is too late to drop a subject now (or possibly in January, as I was considering making a decision over the Christmas holidays).
. I have already put in a lot of work and spent a lot of time on bio.
. I don't want to regret this decision, because I can't go back once I have made it.
I think I will discuss this with my Head of Year, but I would really appreciate further perspectives, as I am unsure of what to do.
Thanks!

Just as an update, I did end up dropping bio and it was 100% the right decision to make. My grades are going up and I feel so much less overwhelmed and better about the subjects I am doing. Thanks for everyone's advice!

So, I am currently in Year 12, studying Biology, English Lang + Lit (combined), Religious Studies, History and Welsh Baccalaureate (similar to an EPQ).
I love all my subjects other than biology, which I find incredibly challenging due to the large amount of content and workload. I have recently thought about dropping biology, for various reasons:
. I do not need it for the Uni degree I want to pursue in the future.
. I am not enjoying it at all.
. While my other subjects come naturally to me, I find it very difficult to find motivation or interest in bio.
. Without bio, I could put more work into my other subjects and could also focus more on wider reading.
. I don't know if there is much benefit in continuing with it.
. I know others who have dropped a subject and are currently doing 4 (including Welsh Bacc).
However, there are also reasons I am conflicted about this situation:
. I am worried that it is too late to drop a subject now (or possibly in January, as I was considering making a decision over the Christmas holidays).
. I have already put in a lot of work and spent a lot of time on bio.
. I don't want to regret this decision, because I can't go back once I have made it.
I think I will discuss this with my Head of Year, but I would really appreciate further perspectives, as I am unsure of what to do.
Thanks!

Just as an update, I did end up dropping bio and it was 100% the right decision to make. My grades are going up and I feel so much less overwhelmed and better about the subjects I am doing. Thanks for everyone's advice!