Hello! Unfortunately this just happens from time to time. I have pretty big account and impressions are getting higher or lower, that's okay, it also depends of amount of people visitting fiverr, varies each month, there's always holyday rise in conversion and impressions. This is not something stable
I know the struggle of new user because I started from zero without fiverr pro or something, when your impression nombers are low in general, any little change makes you worry. If you're getting 5 star reviews there no reason to worry about, but here're some things you're still able to do
You can work on better examples for your portfolio, better cover always increases conversion
You can think about descriptions, FAQ, etc to make your profile look more professional
Staying online is also important for your rates.
If you have social media you can include the link to your fiverr profile. If you have some clients you can bring them there to get first orders and reviews. But I personally didn't have any clients when I started.
You can use fiverr promotion if you're able to, it could help A LOT, I used it when returned to fiverr after a year and it was able to bring actuvity back. Anyway, as long as your clients are happy with your work, your rates would grow. It's a slow process, it could take a whole year to grow to lvl2. For me around 6 months passed before I started getting +- stable amounts of orders and my impressions reached 500 a day.
It's hard as hell to deal with, but sometimes we just need to wait patiently and that's this situation. You can only wait for new clients to come and it takes time. Again, people are already coming to you which means your gigs are visible and everything is okay with them
Wish you good luck, have a great day!