Yes it is worth it to keep at it. Consider taking only one course next semester. Find a tutor or someone in your class to collaborate with. I've struggled as well and even took off this fall and spring semester to regroup mainly because of the episode I had in the fall but also to destress a little. I know I cant just dive in and take 3 to 4 courses so in the summer I am only taking one course.
I've had to retake a few courses but the good part is it is easier the second go around even though you feel kind of bad for having to retake it in the first place.
I don't think most people sail through college unless they were born with a silver spoon in their mouth and never had to struggle with life stuff.
Everyone I know struggles in college, they work full time (as do I) and some are single parents.
NEVER GIVE UP! You will thank yourself when you graduate and finished something
Keep on keeping on
Get to it
Hugs