u/Benthic_jump

I'm 21 y/o, pretty new to all of this but looking to invest in ACWD/VWRA long-term. Rn I'm still in uni but have ~$10k to spare which I want to invest using ibkr. Should I do a lump sum and invest the 10k in one shot (and may not be able to DCA after) or do smth like $500 monthly DCA (which I shld be able to sustain until grad and continue once I get a job)? I tried searching online and based on my understanding it may be better to do one shot cos of more time in the market + less fees? Sorry if this qn has been asked before. TIA