Hi Romi, welcome aboard! It’s a great time to go freelance, but just starting out has its frustrations. Be patient, and I hope your gigs are massively successful!
I checked yours out since I was just passing through, and I love the confidence that shows through in your descriptions. Great example of competence and individuality that I think will serve your gigs well.
And since you mentioned that you appreciate tips or feedback, I happened to notice a couple of minor things! 
I’m only seeing 4 tags (under your actual gig) being used at the moment, and you should have 5 available to you. I’d recommend making sure that all 5 are filled out.
You also have 4 skills (under your profile) filled out, and you should have 15 slots available for your skills. I would also recommend trying to make sure as many of those are filled out as possible, as long as they are relevant to your gig offerings. What areas of proof reading do you specialize in? Blogs, webpage content, ad content, etc? See if you can fill out your 15 available skill slots with those. For example, I’m a voice actor, so in my 15 available skill slots, I include the various spellings of voice over artist as well as the different types of voice overs I do - commercials, video games, cartoon characters, narration, etc.
I didn’t see any FAQ’s under your gig. Each gig allows you to include up to 10 FAQ’s, I would recommend making use of those to flesh out all of the little details of your gig. Do you work with certain genres? Can you work with other file types? What programs do you work with, what file types are your final deliverables? Etc. You go into some detail under Important Notes in your gig description, but you can also make use of FAQ’s to include more details.
Also, gigs! If memory serves, you start off being able to publish 7 gigs. If you provide proof reading in several different areas, once you’re comfortable with your first gig, don’t be afraid to use those other gigs to really be able to advertise those specialized offerings.
Anyhoo, sorry for the wall of text, but I hope you find any or all of that helpful! Good luck, and remember to be patient! 