Cardio 3x per week, Heavy weights 2x per week2) Manage diet and stick to it.3) supplementation (daily vitamin, turmeric, D-aspartic, etc)4) Schedule tasks that give a good sense of accomplishment5) Take time to be grateful for opportunities and lessons learned

Here's a very realistic scenario for you:  You are in your 30s, and decide to buy your first rental property to supplement your retirement. 

We've owned a few homes that we've lived in and are looking to supplement our long term income with rental properties.

As far as looking for a job to supplement your income now .....well you can find those anywhere. 

Using turnkey rentals for passive income could be a great way to supplement income while you're working on your flips.

They're close to retiring now, and are strongly considering scaling down their business and jumping into real estate as a retirement "job"/income supplement.

I still work my day job which supplemented the down payments for my first 4 rentals.

So many variables.FWIW, my goals are to help me save for retirement and if I'm well on my way to that, perhaps provide supplemental income.

Minor rent increases over a long period is not a positive move forward it is simply supplementing your tenants rent at your expense. 

Since last year I have bought 16 properties now as rentals that I manage myself and my goal is to grow that to about 150 to help supplement my income.