Roth IRA(22yo)

I currently have FSKAX(Total US market Index fund) in my Roth IRA and was looking to DCA into FIDU(MSCI Industrial Index ETF) and FTEC(MSCI Information Technology Index ETF) as well. I believe in both these sectors and would like to have a little more weight in each. Any thoughts or objections? Thank you I also have international exposure in my 401K