I bought femme clothes from thrift stores. It's cheap, I could swap out equivalent masc clothes that I didn't anticipate needing. It got easier over time as a sense of style developed. I'm 3.5 months HRT and 90% of my clothing was purchased pre-HRT, no significant size changes yet. Exception: Bras were mainly purchased after.
For makeup, even in boy mode a little foundation and blush made me feel cuter. The key with makeup is subtlety. And a lot of foundation to hide shadow, if that's a concern.
Finally, a skin care routine did wonders for me, especially once HRT began. I use CeraVe cleanser, moisturizer, and a Neutrogena retinol cream between them every other day at night, plus a Neutrogena sunscreen in the morning. It had super noticeable softening effects on my face within two weeks.
What helps me is: you can experiment with all this stuff without necessarily taking it out of your bedroom if you don't want to. You can wash off the makeup. Or you might feel great and go out.
Good luck!
Transfem folk tuck with tape to achieve a smooth groin area, transmasc folk use tape to achieve a flat chest.
Duct tape is seriously the wrong tool and can cause serious damage. "Trans tape" or "KT tape" are the right thing to use.