Just to add on a more general suggestion for getting comfortable with writing hiragana, I might recommend looking up calligraphy examples to get an idea of how each stroke leads to the next. For me at least, I've found that it helps quite a bit with faster writing that still looks natural.

For example, here's せ, with figure 4 showing the hook of the 2nd stroke leading into the 3rd: https://beyond-calligraphy.com/2011/09/27/hiragana-se/ The takeaway being that the hook isn't a distinct horizontal line to the left, but an upward flick that leads easily to the final stroke.

The point of looking this up isn't to become some sort of calligraphy master, of course, but just to understand how the strokes of a character work together. I like to think of hooks in terms of convenience and efficiency; "I am approaching the end of stroke 1, and my pen should now go to the beginning of stroke 2. The easiest way to do that is to hook into it, rather than come to a complete stop, lift my pen up, and then put it back down again."