I had the same issue mostly fear driven however that she would choke and I wouldn’t be able to help her. Start off slow with a little it doesn’t have to be a lot, pick something that doesn’t make you too nervous.
We started weaning early due to reflux so she started with basic puree (single vegetable) from about 4 months, then gradually increased to the 6 month jars. She's now on the 7 month jars (she's 6 months now) with the chunkier bits in it. She also has porridge for breakfast. I tend to give her a bit of what I'm eating (like a bit of toast) so she gets to learn different textures. I totally understand the stress but tbh I've found the best way is not to overthink it! 💗
Try some purrees. You can mix breast milk or formula with a creamy purree. But personally I found BLW (baby led weaning) to be such much easier. Babies are resilient. But make sure and be aware of the stress and faces your putting on when your nervous. Like if you baby coughs on food and we gasp and run over this can cause them to become nervous with food.
I felt the same and I started off with purees just one spoon then built it up when i saw her enjoying it. You'll be fine mama goodluck