What about other types of education expenses, like trade schools, real estate courses?

What if I  pay for courses and travel to 8 hr classes?

As well as a lot of on-line study, to start a Real estate business?.

Education

Education related to present line of work is deductible if it meets the ordinary and necessary requirements.

Exploring starting a new business is not currently deductible. If the business is started then this may be a start-up expense for that business. 

Take a look at this for the start-up costs (if you actually start one of the business ventures):

https://www.thebalance.com/how-to-deduct-startup-costs-on-business-taxes-397608

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