@ads studio since you switched to max clicks did you set a portfolio bid cap or is it completely open? if it is open and still getting zero impressions after a week on a new account it is definitely that silent review period
@Rka420 mentioned. google does this to almost all new accounts running high cpc niches like real estate now. had a similar issue last month with a local lead gen campaign, took almost 10 days to finally start showing impressions. i would honestly just wait another 48 hours before touching anything else... changing settings too often just resets the system review anyway.