SP500- Time to sell it?

Since the election SP500 had a good run with the price rising around 10%.
The vaccine announcement brought a lot of optimists into the market but the rally was short-lived and failed to maintain gains above resistance.
It is possible for a false break to be in place and in this case SP could drop and retest the lower boundary of the range.
I'm bearish SP as long as the price stays under 3650 zone on the daily close bases and I'm looking for a good point to entry