These are the levels i look at on monthly chart. These are monthly closing levels. Actual daily closing may go below the support before ending back in these zones. BTC may bottom out in any of these levels. Personally i see reversal around $2700-2200 range. But $1100 is also possible. There can be some rebound reaching $6300 levels or even 7000s. But unless we break $7000 with nice volume, expect BTC to continue the downtrend.
The time horizon for actual bottom to set in before the next cycle of uptrend may be 9-12 months.