Self Care/Healing suggestion
Self Care is an overall issue that needs to get addressed, because it is way to unbalanced.
There are already in depth discussions about why it is hurting the general gamebalance, so I don't want to get into that, but talk about solutions instead, that make the perk more balanced but won't outright gut it.
Self Care/Healing change suggestions
-A part of the unfinished healing progression will be lost whenever the process of healing is stopped (if 2 survivor heal 1 injured and one stops, no progress is lost) no matter if it is Self Care of healing from teammates
-Unfinished healing progression will decay while the survivor is sprinting
-Self Care will get charges (1 charge per tier of the perk), finishing healing with Self Care will consume a charge
-Self healing with a Medkit will not consume a charge
Imo, this would already solve a major part of the issues with SC.