1 year old picky eater..guilt

My girl is now almost 15 months old. When I started her on solid food I made all her food myself and she ate mainly vegetables and loved them. As she has gotten older and going through changes and teething she has become so picky with food. For about 3 weeks straight the ONLY thing I could get her to eat was canned soup(refused homemade soup) and pancakes. I was so set on her eating whole healthy foods but her being so picky she is refusing them right now all besides avocados. She loves avocados. I have to over spend on groceries so I can buy random things in case she turns down food I make for meals and I have to substitute and make her something different. Right now the only thing she will eat is lunch meat, pancakes and French toast sticks. I feel such guilt in my heart knowing what she is preferring right now is not the healthiest but it’s that or she doesn’t eat at all. Sometimes I have to make upwards to 4 or 5 different food items for her so she will eat at least one thing. Is anyone else going through this? I mean she just constantly shakes her head no at anything I offer her unless it’s lunch meat or pancakes or soemthing. For awhile she would only eat those knorr noodles and if I tried to make Alfredo homemade she would turn it down and only eat the packaged noodles. I hate this. I feel like a terrible mother, I did my best to make her not so picky and eat healthy.