I'm glad you're here, Peekabooo. I was in a position similar to your MANY YEARS AGO... with help and good advice and love, you can turn this situation into something wonderful. Hang in there, keep trying, and with us.
Great bonding advice above.
Here are a few remarks I like to offer new arrivals...
Most of us swear by our avian vets in the event of health concerns.
Certified Avian Vets
https://abvp.com/animal-owners/find-an-abvp-specialist/
If none are near you...
Avian Veterinarians
http://www.aav.org/search/custom.asp?id=1803
In my opinion, any of the vets listed here should be better than a regular vet.
International contacts, too.
What's the diet? That's critical for health. Too many are kept on seeds or other poor-nutrition things. They need veggies, legumes, grains... pellets are a good staple. Here's what I use.
http://www.harrisonsbirdfoods.com/
I feed Harrison's, supplemented by fresh healthy treats. My first, and later, my current avian vet recommended it. My bird loves the pellets now, but to get him converted, my avian vet suggested putting pellets out all day, and putting seeds (his old diet) out for two 15-minute periods a day. That would sustain him but leave him hungry enough to try new stuff. I presume the same technique could be used to get him to eat other healthy stuff, like fruits and vegetables! My guy was eating pellets in a couple of days, and now I can feed a good variety of other stuff, knowing he has the pellets as a basic. Pellets are out all day... fresh treats a few times a day. I also like Harrison's via mail because I never have to worry about out-of-date products.
Since you're a new parront, I'll just drop a note about avoiding teflon pans, which are lethal to birds if even slightly overheated.