On the fringe of ER, but not sure

[TOPDAWG]

Hello, Last year I had a few posts concerning my situation. After a little over a year, I am pretty sure I want to ER, but I would like to explain my current situation, and welcome some of your advice. When I use Fire Calc, it basically tells me I can ER. But it's hard for me to quit my job based on a calculator.

Current Age: 44
Conservitive Yearly Spending is $135,000
Current Investment Portfolio: $2,500,000
Current IRA's:$700,000
Current College Savings for 2 Kids $130,000
Debt: None, Zip, Zero
Other Income: $10,000 (Wife's part time job)

I was a successful business man who decided to sell my business. I currently have a good job, but truthfully I am burned out. It's time to pay it forward, and help others with volunteer work.

Any advice is certainly appreciated.

Thanks

TD