Replace amalgam fillings if You can.
Create a supportive nurturing environment for yourself. Throw out anything that does not build you up.
Drink good clean water.
Spring. Solar. Crystal charged, filtered.....etc, whatever you have access to.
Get daily portion of sunlight.
Experiment with fasting, there are many ways to give your body time to reset.
Try contrast showers, they are fun & energy boosting.
Replace processed, packaged, dead food substances with fresh plant-based organic produce as much as You can. Eat as much raw as it feels comfortable for you.
Nature will take care of your immunity like no factory ever could.
Go on a soft cleanse - fresh fruits & juices, short water fast. If you never did anti-parasite cleanse, You might consider one.
Be gentle & patient with yourself.
Start moving your BODY more. Sweat often.
Infra red sauna &/or re-bounder are wise investments for those who are health orientated.
Get massages & salt baths.
Spend time creating. It boosts immunity, increases energy & calms the mind.
Learn to LAUGH things off. Don't take yourself so damn serious..
Bring healing herbs, teas, spices & super foods into your kitchen.
Turrneric. Aloe Vera. Spirulina to mention just a few Natures doctors here.
Eat berries, lots of GREENS.
Add fresh sprouts to your smoothies.
Learn how to prepare your own food that nurture Your state of WELL-BEING.
Treat your kitchen as your personal HEALTH LAB.
Food Industry is not a lab to trust with your HEALTH....especially now.
Turn to NATURE as much as it is humanly possible for you.
Do breathing exercises to strengthen your personal energy field.
Learn to respect & love what is called SELF.
Ps. I do not have a medical degree & just have been rebuilding my immunity for decades after it was whacked by vaccines.