Lymphatic massage effects??

Lately, the area under my ears and underarms feels particularly heavy, and I'm so worried because it seems like my lymphatic circulation isn't good. *Sob*... haha. Now that I'm in my 30s, my blood circulation definitely isn't what it used to be, so I'm terrified that this swelling will just turn into fat. I've heard that just doing lymphatic massage properly can reduce facial swelling and brighten your complexion. Do you guys have any specific methods? Hehe. I'm confused whether I should use a gua sha tool or if gently rubbing with my hands is the right way to do it. Haha. Does anyone have any circulation tips I can do in my spare time at work, or recommendations for teas that are good for detoxifying? Haha. Let's all flush out all the toxins and get through the rest of the week with light bodies!!