The difference between you that have low budget but have been in crypto for long and a person that has money is time. If you have invest $300 in ethereum and solana back in the days, you will be in some profits right now even though the projects are not in the previous all time high because I remember Solana was trading below $7 and ethereum was below $400 when I came into crypto but we didn't invest rather just discuss it and now look at where they are traded today.
The rich people can follow trend anytime because they have money sitting in one corner, they can hop into the market when the market is green and log off again when the market isn't favorable for them and they keep doing this in each bull market and they make tons of money like it's very easy for them but even the poor people can do the same and hence the reason why you should hold, be a diamond hand and make sure you have other means of making money so you don't end up selling them later.