Or a book like this. I bought it for my 7 year old son and he learned cursive in about ten sessions (which took him several months because his motivation was off and on, and I wasn’t inclined to push it.) I think you could be up and running in a week, honestly. You have the basics down. Just need to retrain your habits and consistency.
For my very start I found a cheaper book that really got me going in the right direction. Plenty of practice space. Collections of commonly used letter combos and sentences and phrases. It’s one of the cheapest you’ll find and in my way of thinking you’re gonna need a couple for four books though maybe not all at once but this is a great book to work out the kinks for approx $5
I too bought the Spencerian 5 book course as well and my handwriting improved. Where I felt let down, and still do, at least with the version I have) is the instruction. The exercises are pretty clear but the ‘how you make the shapes and the letter shapes they eventually become’ is less than clear and if you’re taking the time to re-learn the feel, movements, and muscle memory you want to learn them correctly. Does anyone have any good Spencerian books to share? I’ve only finished part of book 1 because i don’t want to teach myself bad habits again and Ive found that what i thought the book was saying vs what i was seeing someone do with fountain pen or calligraphy pen was different than what i was reading in the book. Maybe I’m just dumb…i mean i am…but seriously anyone have a good Spencerian book with detailed instructions? I really wanna learn.
I also found this book at amazon useful. I made the stupid mistake of buying it in kindle first but it does have decent enough paper to use for exercises and I found the book useful. This was one of my favorites and its not too pricey.
Also there is a free website called “consistent cursive”. It’s a website with a bunch of classes available on YouTube or through the website. https://consistentcursive.com Note he teaches business cursive and palmer methods he’s a good teacher and I’ve found a lot of his stuff to be useful. Just depends on what you’re looking for.
Last, the spiral bound version of the Art of Cursive Penmanship mentioned above is indeed good. Spiral makes it easy to work with the exercises.
Practice, practice, and then practice some more. Get some first grade writing paper to practice on or a learning to write workbook. I found these two on Amazon actually for adults. One is cursive the other is print.
Cursive handwriting workbook for Adults: Learn to write in Cursive, Improve your writing skills & practice penmanship for adults https://www.amazon.com/dp/B089CZYTFV/ref=cm_sw_r_cp_api_i_ESfQFb9X0RXQK
Print Handwriting Workbook for Adults: Improve your printing handwriting & practice print penmanship workbook for adults https://www.amazon.com/dp/B08BFRDFS9/ref=cm_sw_r_cp_api_i_cTfQFb7085AZK
(Scroll down on the right -- there's helpful resources.)
If you want to get a 'feel' without being overwhelmed, I'd suggest a general workbook for modern cursive like this. You'll glide through and have confidence to branch into a more refined style - and you should - modern cursive is like tasteless cheese compared to smoked cheddar and brie and parmesan.
There are some problems with modern cursive that need to be cautioned. Why I say problems is because writing should cope with some 'devolving' - such as when you write fast, or naturally exagerrate certain features over time as it becomes 'your' hand. The most frequent sins of modern cursive is the capital G, I and J, and lowercase f and sometimes z. Don't be wedded to the models provided in modern cursive. Ditch them at the first opportunity.
Something to keep in mind when you learn a script model, is that it is a model. You can learn more than one. You can alter them. You can substitute letters - especially your capitals, and especially complex letters like 'f'. You just want that solid foundation and understanding of lettering underneath it all, so you know that if you personalise it, you're enhancing the script, not taking away from it, and maintaining or improving legibility, not taking away from it.
Some quick tips:
2B pencil (not HB); fountain pen (not ballpoint) - unless you have an incredibly effortless pen. You should never have to press the pen into the surface. If your fountain pen ink bleeds (the letters will look fuzzy), change paper.
Ruled paper specifically for calligraphy/penmanship; not general purpose ruled writing pads. Blank paper (laser printer paper is better than inkjet) is handy for practicing flourishes 'off grid'.
Aim for less wordspace and more line space. This is almost a universal problem in handwriting, caused by instincts compensating for bad tools. The effect is so powerful that it can make a beautiful hand ugly and an ugly hand tolerable.
Good luck!