So many different refresh sprays are out there. I think lavender isn't as heavy and many different companies make it. Shea moisture has a refresh spray (not lavender) but it seems many CG's like to bash shea moisture bc their products are more thicker AND you have thinner hair it probably won't work. Remember, we can all help and you can take our advice, but it's all trial and error unfortunately. It sucks bc you trial it out, get excited, and then when the end result isn't what you want you feel defeated. However, that's the risk/journey of becoming a CG. Always remember you have thousands of women on here to help you.
On a side note, even though you have thinner hair, I still would recommend a little amt of coconut oil. If you don't use it excessive then it should be fine. Also, I highly recommend the plopping method regardless of long or short hair. It is simply a matter of making sure all the hair remains towards the top of your head.
Once again, Good Luck