Lump sum each month, or DCA over days/weeks/months?

Lump sum each month, or DCA over days/weeks/months?

Hi.

I’m 16 and currently have no major expenses, so I’m able to invest about 90% of my monthly income, roughly $2-3k.

Since I can’t predict or time the market, I’m wondering, should I invest the full amount as a lump sum at the start of each month, or should I DCA by spreading it across days, weeks, or months?

Is there a big possibility of a september dip?

Also, if i’d do more frequent transactions from the exchange to my trezor, in case i do DCA more often, what would that mean utxo fee wise?

Thanks.