There really isn't a need to deposit more that $5o - $100 imo. You don't have the experience to effectively call yourself a winner at poker. In fact, your experience would say that you are the opposite at this time. That's fine. From reading your posts, I'm well aware that you are determined to improve and become a much better player. That's good you will need that determination, and it will pay huge dividends in your poker journey.

However, the reason I say you shouldn't deposit more than $50-$100 is this. You will need to put in a good sample size at each stakes. Personally, I started with $50. I donked around in some SNGs and 2nl/5nl until my BR was $300 or so. I then decided to transition into cash. And from my experience (limited, but still) I needed to put in around 30k hands at both 10nl and 25nl until I was sufficently BRed for the level about it. This was ~30k at 10nl with a 6.46ptbb/100 and ~30k at 25nl with a 4ptbb/100. So that's about the number of hands and winrate i would think you need to acquire before being rolled for the next stakes up.

That's why I think depositing $500 will be more detrimental to your attempt that helpful. For one, you have shown you hate playing microstakes and want to jump into the bigger games quicker. Well you will feel you are ready quicker if you start with a larger BR. My suspicioun is if you start with a $500 BR and put in 10k hands at 5nl and win $100 or so, then you will say, "Hey....My roll is now $600. That's 24 buyins for 25nl. People only advocate 20 buyins, so I'm overrolled.. I'm gonna take a shot". Then you will proceed to take your shot, either not have the skill or hit variance and donk off all your profits from 5nl or even your entire roll.

However, if you put in $50 you will be forced to get in a significant sample size at both 5nl and 10nl with a sufficient winrate before you are rolled for the stakes above. Your only potential downfall would be getting impatient again and jumping up to stakes, however, that is still a possibility if you start with $500 as I explained before. You have you should probably expect to put in 30k hands at 5nl before you are ready for 10nl. Then another 30k hands at 10nl before you are ready for 25nl. Etc and so on, until you reach higher levels and need to pad your roll a bit more, such as I am before I move to 100nl. But if getting impatient is your downfall this time, then you will not succeed because BRM is a vital part to any successful poker players game.

Good luck.