Here is some info to help you decide:
https://help.fiverr.com/hc/en-us/articles/360018143698-Seller-Plus-FAQs
Success manager is a great option for starters.
It's not like before. Every order can change your metrics/stats quickly. And after up to 24h you can level up if your got better in all 6 metrics.
Read here about metrics and success scores.
https://help.fiverr.com/hc/en-us/articles/360010560118-Fiverr-s-new-level-system
You can add 3 more gigs if you have some more skills to offer. Here on the forum, you can find posts about optimising gigs and speeding up your business start. "Tips From Sellers" - check that section of the Forum.
Yes, those are the new rules. I thought the badge thing might need time like before. Since the support team can already see the level change.
@design_tori
It was a problem with updating the Fiverr app, you should see the badge now.
You had an order in February. There are no restrictions on your account. If you don't have enough impressions and clicks, try optimizing gigs and reading the forum sections, like @fahadislamjuel said.