laying in bed on a friday night icing my knee..from what I can gather, I have "patellar tendonitis", and a more mild case takes 6-8 weeks to heal 😫😭

Ice is no longer recommended for these types of things because it slows healing. Also very few injuries heal from full rest. A physiotherapist would recommend a progression of strengthening movements to get it back stronger. They would also figure out the root cause which is almost always up or down the chain from the pain point. Mansplaining done.