By doing this you'll start to see which strategies might better align with your resources (time, money, energy, connections, etc) and your future goals.

That doesn't include any maintenance costs or other variables.I regularly argue that solar energy is rarely worth the investment.

So I am not sure whether I really need sources of passive income right now considering that I have a lot of energy that I can spend on investment strategies that require more efforts and energy.

Your clients are motivated sellers.You can NOT convert people who do not want to sell  (below market value) into people willing to sell below market value.The mistake people make (constantly) is their efforts are based on forcing non-motivated sellers to sell, by constant harassment.This is wrong.Instead of mass mailing blanket mailing,  and putting your energy in finding random people and forcing them to become motivated by putting a ton of effort and money into follow-up, you need to focus on targeting the RIGHT people.People who are actually looking for your service.Hopefully, it changes your perspective and you can improve your business.

Growing cannibus can require high energy and water consumption

Evaluate the numbers and your time energy lifestyle for managing rentals out of state and how those align with your why you're investing in RE. 

You can also write it off as a business expense and there could be additional tax benefits for energy efficient home improvements.  

I am really trying to unleash my inner Cody Davis energy lol. 

@Chris Seveney I agree everyone should focus real energy on building a stellar network. 100% agree.

It can be done if you have the energy and drive to push forward.