OP the path to being taken seriously at work is to (a) be competent and (b) look professional.
What looks professional for women in the workplace depends on the tradition for that particular industry and culture.
Consider for example: in a country I used to live in (Middle East) a working Muslim woman would cover all of her body and hair apart from hands, feet and face. But she would also wear extremely heavy make-up, bare feet in high glittery sandles, ankle bracelets and bright red nail varnish. In that country, it’s slutty to show your knees. Contrast the UK workplace where it is absolutely fine for a women to show her knees, but heavy makeup, high sandles and the rest of it comes across as desperate and sexually available.
Colleagues I know from Eastern Europe have sometimes struggled to adapt their image to UK City workplaces, because the outfits and makeup that signals wealth and professionalism in Russia, can signal flirting, sexual availability and a lack of professionalism in London.
Or even within the UK, clothes appropriate to a PR/ad/music company are completely inappropriate in a law/accountancy environment, and vice versa.
Now you may say “But I want to look beautiful.” You’re not at work to look beautiful, you’re there to work, and to signal with your appearance that you’re competent. Would you trust a surgeon who does your consultation dressed in a fleece onesie (or bikini)? No. Because it shows they either don’t know or don’t respect the norms for their workplace.
You may say “But I want to be true to myself.” Unfortunately that is a luxury that doesn’t apply at work. DH doesn’t want to wear a tie and suit jacket, or polish his shoes, he’s much happier in lounge wear.
Work out what game you are playing and dress appropriately, or leave the game.