Feeling demotivated as i havent seen much changes in the ranking ( organica as well as GMB)

For the past 4 months I've been working on a website providing business setup services in Dubai UAE, their target audience is foreign expats (mainly from India ). initially, there was no ranking but after uploading monthly blogs optimising pages and all the basic SEO strategies.. I've managed to rank on a few keywords in the 30-90 position ( in 2nd month )but the ranking isn't stable.... don't know what's going wrong... the GMB profile is also well optimised... but still no ranking.... the only loophole is I'm not able to give time for daily backlinks creation. but in the last 4 months I've created around 50-100 backlinks including LC....