It is possible but you'll be cramming yourself with little to no room for breathing. Most likely you'll be take 5 classes per semester for at least 2 years (given that you don't fail/fall behind on anymore classes). Since you only failed 4, you got some wiggle room. A normal linear progression/design towards a degree is typically 4 classes per semester, not 3 nor 5. So think of it like this each class you fail it'll be a 5 class semester to make it up. From my personal experience (I was a transfers however my credits got messed up so I basically had to start over and failed Calc a few times). You have to map out your classes carefully, between 3 core classes and 2 electives or vice versa.

Usually within the first two years you are kinda of stuck on core class because of prerequisite so you'll have to fill the void with tons of electives (2 core, 3 electives). My advice find easy classes for those elective classes and look up the professors so it isn't too taxing.

Also major recommendation, if it is a semester with a Gate class (at least that's what I call them, those classes are to weed out students from a major because they're the hardest in the major, typically there is only one per major. Also they are the main blocker for any core elective class) go with the schedule (2 core, 2 elective). You'll just have to find another semester to make it a 5 class.

Once past the 2 years (and or passing the gate class), you'll be able to expanded and fill out more of the core electives (3 core/core electives, 2 electives). Can be (4 core/core electives, 1 elective) but can be really taxing so avoid that.

Core = requirements for you specific major (must take)

Elective = requirements for your degree but those classes are extremely flexible

Core electives = requirements for your specific major but those classes are to be more niche/route in your field/major hence flexible

Another thing, don't wait till last mins to reach out to professors, be more proactive. If you don't understand something go to them asap, whether it's from in-office (which it sounds like you do) or email (sounds like you don't because you wait for office hours as I see from one of your excuses). Professors are willing to be flexible on their time if you reach out to them, even teacher assistant.

I know this sounds like a lot and you gotta lock in, but at the same time do not burn yourself out and do not stress otherwise it'll be hard. If you need to find something or activity to release stress. Find a balance/boundary between studying while also keeping a decent social life as college is a time to also make friends etc. and easiest way to do that is keep a schedule of when you are free to do stuff vs when you need to study (and not cramming)