@James Charles Remember that what Dave Ramsey teaches is not dogma but rather good advice for the vast majority of people who have little self discipline in their personal affairs.

It's a hard discipline to build up cash when you can get a much better return actually invested.  

I would just say to remain disciplined in your assessment.  

But, smart or not smart the key to survival is discipline. 

And it will keep monthly and yearly reports of all your trips and the amount to claim.I have had a very difficult time disciplining myself to keep track of all of our various trips as we spend a lot of time renovating and managing buildings not 5 miles away- this has largely solved it.

I will challenge you to add $10K of your own money to that savings, so you can prove to yourself you have discipline.

My question is what discipline of civil engineering would be best to focus on to help me out in real estate investing?

It's not sexy, it takes discipline and patience.

Learn Quickbooks and develop the discipline to enter your expenses each day. 

I feel like I would not be disciplined enough to pay it off in 15 years if I took out a 30 year mortgage, but that sounds like my own problem.