At this moment, in ResearchGate your h-index is 17 (it may be higher in other platforms like Google Scholar). This means that 17 of your publications have at least 17 citations. To reach an h-index of 18, it is not sufficient to get many more citations - it also depends on their distribution over the publications. If 17 publications will have 18 citations, but an 18th publication has only 17 or less, your h-index will remain at 17. (See https://www.researchgate.net/post/I_am_wondering_if_others_have_noticed_discrepancies_between_the_citation_H-index_and_i-10_Index_between_Researchgate_google_scholar_and_scopus for the differences at different platforms.)

Well I seem to rleveling be new citations each week but nothing changes-

The h-index does not increase linearly with the total number of citations. The higher it is, the harder it becomes to increase it by 1.

The h-index will never be greater than the number of papers the author has published; to have an h-index of 20, the author must have published at least 20 articles w hich have each been cited at least 20 times.An H-Index of 20 or higher is often considered good for mid-career researchers. Senior Researchers: An H-Index of 40 or more is typically considered excellent for researchers with long, established careers.