To be clear, I did not advise that you (or anybody else) should “make up” a passphrase. Passphrases must be randomly generated by random selection (using a random number generator or dice rolls) of four or more words from a list of at least 5000 words, with no cherry picking (i.e., no rejection of words or phrases that you don’t like).
Generally, I advise using a 4-word random passphrase, because something like tyrant-loads-misty-skirmish is typically easier to remember and to type than something like 6=+2g{oW, even though it is longer.
In your specific case, though, if you have already memorized a “super long, super complex” character string that was randomly generated (e.g., something like _n&e=7qsv!yfr(~U&>[k), the best solution may be to shorten your master password to 8–10 characters (e.g., _n&e=7qs or _n&e=7qsv!), to facilitate typing.