Get a whiteboard and breakdown what you're learning sentence by sentence, then re-write the sentence until you feel confident enough to move onto the next one and join them together. This will be a long process at first but you'll get faster at it as time goes on! :)
If your teacher gives you a sample answer or you have done one yourslef record yourself saying it out loud and then playback and try to learn it and attemptt to write it out.
Also use duolingo and TG4 and RnaG tobuild up your familarity with it.
You can also get graiméar n Draoi and do the exercises to build up your grmmar.
if your ever doing a question on sending a message to your friend do a few of them and structure a random message so then when you do one in the exam all you have to do is write the contents of what your writing about
You could try and get help from a reletive? My brother gets help from my cousin and his grades have gone up! Do please do zoom classes or facetime with them because no one wants to get covid! Anyway good luck on your LC!!