Ethereum is currently in the third wave of a decline on the 4-hour level. If it continues to decline, the first target to watch is the earlier low of 3540. If it stabilizes, there may be a small-level rebound or a bottoming out. If it does not stabilize and breaks down, then the next targets are around 3475 and 3300.
The support levels below are quite significant and are all major level supports. In any case, everyone should make sure to set stop-losses when trading; failing to do so essentially means giving money to the market. The market is always there, but capital is not always available!