@Misael Carlos Vera I'm also a new investor, and I recently closed on a SFH that I'm house-hacking. Similar to what you're experiencing, my motivation comes and goes, but isn't that most emotions? Some days we feel better than others and vice versa. There are some quality responses in the thread already, but I figured I'd offer what works for me.
That thing that has kept me consistent was writing out my goals and corresponding habits. It took the guess work, will power, and emotional roller coaster out of the equation. I try not to rely on motivation, inspiration, or happy go lucky feelings to work towards my goals. If I have an extra pep in my step certain days, then great. If I don’t, I already set up the habits/infrastructure to continue moving forward. Essentially, I’m trying to make working towards my goal a daily subconscious habit like bathing/brushing your teeth/exercising/or whatever you do daily!
I would recommend reading Atomic Habits and/or The Power of Habit. It really helped me tremendously.
Best of luck! You got this!