Sorry you feel this way. I can only encourage you that it will get better.
We all start from somewhere so it will not always be like this.
You have learnt the basics in your course so build up on it so it doesn't go to waste.
A few tips
1-
Buy a mannequin to practice on it will help your confidence + speed
2-
Follow Lash Artist on Instagram to inspire you and you will end up doing sets like the ones you see
3-
Join support private Group on FB Lash Tribe, Lash UK Obsession -greqt for sanity + a good laugh +tips
4
Research
Here is what I found that helped me a mixture of watching video , reading blogs + applying it
Lash Inc journal is great for info and industry info.
https://issuu.com/louiseprunty/docs/lash_inc_-_issue_14_-_content__comp
Free subscription
5-
Tools
Buy Vetus range it's brilliant.
ESD 17 - to isolate
ESD 15 - To pick up
ESD12 - Straight great to have as a spare to check work afterwards
6
Supplies
Clear or Vol1 Glue is great from Eyeluvlashes
Eyeluvlashes are brilliant (no affiliation)
-Silk lashes 0.15,0.12 (it's good to mix to get a full&fluffy set)
Length - don't go longer than 13mm or it looks spidery. (The shorter the fuller eg. 8-12mm is great)
Flat lashes 0.15 for dramatic look without added weight
Curls - CC D (ditch B or J)
Isolation
Placement /Direction
Styling
http://www.bronzebombshellbeauty.co...our-eye-shape-eyelash-extension-styling-guide
https://goo.gl/images/Ml7Bqm
Retention
Adhesives /Retention
https://www.thelashandbrowcompany.co.uk/blogs/news/39049220-lashqs-eyelash-adhesives
https://thelashchickpro.com/blogs/news/78053892-retention-101
Good luck as long as you isolate safely it's up to you how you lash. xxx