Hi Sammy. You are way too hard on yourself. Depression or not, many of us worry that we didn't give the right gift, someone won't like what they received, it wasn't enough... and on and on.. Getting them ANYTHING at all should always be appreciated no matter how big or small. It's time that people spent more time appreciating what they have and sharing that with family instead of going broke spending money they don't have or find people unappreciative.
I have had depression since 7 years old. I do understand but I am learning many tricks on how to deal with it. I have bi-polar, environmental and clinical depression so I reach the entire gamut. I don't take any medications for it, I just learn new coping skills. Have I perfected them? Oh hell no, but I'm a work in progress. And let me be really upfront here. You are NOT inadequate and don't ever let anyone tell you different. Whatever you fight, you strengthen and what you resist, persists.
If you can, get the book called "Feeling Good" by Dr. David Burns. It may help you a lot more than you realize. Let me know if you ever need to talk. Gramybear

I used to do the same thing. Nothing was ever good enough. I wasn't providing enough. I didn't work hard enough etc. I beat myself up and failed to see the good around me. I was enough and doing enough but was blind to it. When you wonder that look at the situation. Do those you get gifts for not appreciate it? Do they say they wish it was more? If they don't then you are more than enough. You have to worry about you too. Be enough for you. That's what matters

You definitely shouldn't beat yourself up so much of is self abuse. Be good to others but also be good to yourself perhaps somethin in your upbringing made you this hard on yourself, you have to love yourself also which is the hardest thing to do but you are good enough and as good as everyone else