#1 I went from 5'10" / 260lbs to 180lbs. Was LOVING the way I was looking (especially when we went to Puerto Rico and were playing on the beach...that's what I was talking about the friendly, brown girls. My wife was not amused

). I hurt my shoulder last year in April and was hovering around 185lbs. I went to Germany for a month in September/October and gained 30lbs. I've been around 215lbs since. So...trying to get down to the 160/170s in 2021. Exercised today and was feeling good...but my joints were cracking.
I was doing:
45 pullups
45 dips
120 pushups
120 situps
200 squats
20 mile bike ride daily
so cutting back to :
25 pullups
15 dips (this is KILLING MY SHOULDER RIGHT NOW)
50 pushups
120 situps
200 squats
20 mile bike ride every other day
...and gonna evaluate if I go up in days or reps later this year
#2 is incredibly dangerous!!!!! Especially right now.
Start with a small number and NEVER put in another penny!!!! [so small that you can afford to lose 100% -- because you will. It's gonna be the cost of your tuition for that life lesson]
You would be better off to take that money...create a 6-month emergency fund that pays all of your BILLS (the 4 walls - food/utilities/transportation/rent) and use the rest to pay off as much debt as possible. People always look at the money equation wrong. Minimizing debt would be more effective than "investing" in your business just because paying off debt is 100% effective, EVERY. TIME.
Money IN - Money OUT = Standard of living.
Most people have a negative standard of living and then focus on the money IN portion...but then increase the money OUT portion as their income rises (it's lifestyle creep - you need a new car, a bigger house, a boat, a motorcycle, and some jewelry). If you minimize the money OUT portion...your standard of living goes up too...and makes the money IN portion easier to focus on because your income is not being used to manage debt payments.
I'm just some guy on the internet....but, seriously, consider it