Can I take home deductions on sch C that show net loss ? How long can I claim a loss b4 I should stop claiming a home biz? I earned $280 in 2018 but had biz expenses.Thx

I started a home business for a direct sales co.  in Aug 2018.  I bought a business kit with supplies, paid a monthly website fee & had  online advertising expenses.   I earned about $280  for 2018 but  did not receive a 1099.
Can I take  any home deductions that show an overall net loss on Sch C? How long can I claim a loss before I  should stop claiming a home business? Thx