I think you have to follow your instincts on this and take some advice from your tutor. It depends on the reason you have struggled as well. If it’s lack of effort a concerted push now would allow you to catch up and stay on track. If it’s struggling with content maybe best to consolidate with another year.
I was in a similar situation to you, due to lack of motivation. I pushed on but in truth my effort didn’t go up and I ended up failing. However I subsequently got a grip, resat at college two years later and went on to uni. These struggles and set backs are part of the journey, weigh up the best course of action and you will get there