Most of the people make losses and will keep making losses because they want PERFECT entry and exit in the trade, which practically is extremely hard to achieve, therefore to make consistent profits always buy and sell in parts.
$SOL might face more corrections in the coming days. So it's better to place 4-6 limit order in descending order instead of buying in the single limit/Market order. In this way you can bring the average buy price lower and make more money.