Altenew Mega Brush Alpha stamps vs DIY

You can do it!!!

(and post photos for us to ohh and ahhh over when you're done!)

Another alternative is to download the brush script font, print onto cardstock, & cut. You could trace the letters with a black brush pen (or embossing pen & clear/black emboss). HTH. 

I was thinking more about lettering.
The person who first inspired me to try making my own cut out pieces for my pages was Jen Schow - on youtube. Check out some of her older videos. Her writing is beautiful, and she was the reason I "fussy cut" around the letters because it looks so much nicer that way than cutting rectangles.

You could look for a similar free font, but if you want to use a pen my best advice is: don't expect too much from yourself. It takes years of practice to be able to get the pen to do what you want reliably each time. Don't compare your first draft with someone else's magnum opus.

I drew my own business logo with a brush pen and it took dozens of tries and a lot of frustration when one letter or hesitation or flick of the pen was "ruining" each version, even though I wanted it to look pretty loose and not necessarily perfect. Just keep trying. If you're working on a separate piece of paper you can do it as many times as you like and throw away the bad ones.

The other thing is to have the confidence that other people will marvel at what looks messed up to you if you show it as a finished product that you're proud of. Look at AE selling her weird messy Sharpie handwriting for years. And her even worse Procreate uneven pressure handwriting, ugh. You can do it!

Shimelle has shown her brush lettering how-tos a few times on Lives - if you look at her monthly summary posts on IG (and maybe her blog) you should be able to find the ones where she's done brush lettering on a layout so you can track down which videos they're in. But a lot of it is just writing fairly slowly and practice, thick downstroke, thin upstroke. This particular stamp font also seems to have an effect where the paint is not fully loaded on the brush so it's showing the brushstrokes. Play around hope you have fun!

Could you download a brush script font and cut it out on an electronic cutter? If you like the look of black letters with a white shadow, you can cut them that way, too, even do it inlaid so it still lays flat.