100 miles per week is not feasible if you are going to work in public accounting. During busy season (at least January - March) you should expect to leave the office at 8 pm, at the earliest. You should also expect to be in the office until 10 - midnight at least a few times. You’ll work at least a few Saturdays. Potentially most Saturdays.
It is also likely that you will be traveling on business consistently (i.e. not just during busy season). Expect to be on the road Monday mornings (or worse, Sunday evenings) and Thursday/Friday evenings.
Also keep in mind that you are working in a client-serving role. Last minute long hours, business trips, or weekend projects can appear out of nowhere when the client or partner has a need. I wouldn’t expect anybody to be sympathetic to your training program when there is time-sensitive work to get done.
While all this is going on, you should be studying for and passing your CPA exams. Do your best to get the exams passed before starting your job, if possible.
I don’t mean to scare you or necessarily dissuade you from going into public accounting. It’s gruelling, but it is a great place to kickstart your career and you don’t have to stay very long to reap a lot of job opportunity/income benefits. Be honest with yourself about what is important to you. A few years in public accounting will give you solid experience, skills and network but they will be a huge investment in terms of time and effort. A few years will give you a platform to jump off into an industry role with good advancement opportunities. At the time you make that move, you can significantly increase your CPA firm income while realizing a major improvement in work/life balance. If making a lot of money is important to you, making partner at a Big 4 firm is a very clear, structured approach to eventually earning 7 figures per year with a guaranteed pension of 25% of your best year’s income. In that case; however, you are signing up for the brutal lifestyle I described above for 30+ years.
Most industry positions (read: nor a CPA firm) at your level will be standard 9-5 roles whereby a 100 mpw training program is totally feasible. That being said, going straight into one of these roles straight out of college will usually limit your advancement opportunities pretty significantly compared to your peers who did a few years in Big 4 at the beginning of their careers. Again, public accounting is an investment.