I'm sure if you write again you will do much better, I'd recommend the re-write for sure. As for Ireland, a few of the schools don't look at the mcat so I'd apply for those worst case scenario(Trinity, NUIG). Now I'm almost 100% sure they do not have a January session so if you haven't applied yet you would have to wait until November to applying for the following year. Your first priority should be focusing on up grading that mcat, if you really want to start soon, I'd look into the Caribbean schools like Saba and ross maybe, those have January and May sessions.
PEACE!