What are my chances of surviving 3 sciences, two with labs?

I am going into my senior year of undergrad. I am taking Biology 1, Physics 1(algebra based) - both with labs, and Neurophysiolgy - without a lab. Also taking World Art as a fine arts requirement. But my main concern is the sciences. Does anybody have any advice for getting A’s while taking these classes simultaneously? I also work 18 hours a week so that’s an added obstacle as well. Any advice is appreciated. Thanks

Oh, and I do have a little bit of background knowledge on each subject at least if that helps