cross my broken heart

and

Both with a total of 64 strokes. Both of these consist of a single 16-stroke radical repeated 4 times. There's another 58-stroke character which uses multiple radicals

Meaning biangbiang noodles

However, in Japanese, there is a very rare kokuji (kanji created in Japan) with 84 strokes

also written as

燕 yàn - swallow (bird) / 16

蕾 lěi - bud / 16

凝 níng - to congeal, to concentrate attention, to stare / 16

霏 fēi - fall of snow / 16

霖 lín - continued rain / 16

腾 téng - to gallop, to prance, to soar, to hover, to make room, to clear out, to vacate, verb suffix indicating repeated action / 16

儒 rú - scholar, Confucian / 16

赟 yūn - good appearance / 16

熹 xī - bright, warm / 16

臻 zhēn - to arrive, to reach (esp. perfection), utmost / 16

薇 wēi - Osmunda regalis (a species of fern) / 16

璐 lù - beautiful jade / 17

翼 yì - wing, area surrounding the bullseye of a target, to assist, one of the 28 constellations of Chinese astronomy / 17

霞 xiá - rose-tinted sky or clouds at sunrise or sunset / 17

繁 fán - complicated, many, in great numbers / 17

濠 háo - trench / 17

鹭 lù - heron / 18

麒 qí - mythical male unicorn / 19

瀚 hàn - ocean, vastness / 19

馨 xīn - fragrant / 20

耀 yào - brilliant, glorious / 20

巍 wēi - lofty, towering / 20

曦 xī - sunlight (usu. in early morning) / 20

露 lù - dew, syrup, nectar, outdoors (not under cover), to show, to reveal, to betray, to expose / 21

灏 hào - vast (of water) / 21

懿 yì - exemplary, virtuous / 22

麟 lín - female unicorn / 23

鑫 xīn - used in names of people and shops, symbolizing prosperity / 24

Plus some "exclusive" characters for all those who use traditional characters: These do not meet the criteria in their simplified forms.

穎 yǐng - head of grain, husk, tip, point, clever, gifted, outstanding / 16

龍 lóng - dragon, imperial / 16

興 xīng - to rise, to flourish, to become popular, to start, to encourage, to get up / 16

鴻 hóng - eastern bean goose, great, large / 17

禮 lǐ - gift, rite, ceremony, propriety, etiquette, courtesy / 17

瀅 yíng - clear, limpid (of water) / 18

藝 yì - skill, art / 18

豐 fēng - abundant, plentiful, fertile, plump, great / 18

懷 huái - bosom, heart, mind, to think of, to harbor in one's mind, to conceive (a child) / 19

鵬 péng - Peng, large fabulous bird / 19

麗 lì - beautiful / 19

瀟 xiāo - (of water) deep and clear, (of wind and rain) howling and pounding, (of light rain) pattering / 19

寶 bǎo - jewel, gem, treasure, precious / 20

蘭 lán orchid, elegant, graceful / 20

鶴 hè - crane / 21

權 quán - authority, power, right, to weigh, expedient, temporary / 21

艷 yàn - colorful, splendid, gaudy, amorous, romantic, to envy / 24

And as a bonus, consider changing your last name to a surname such as:

薛 Xuē, 霍 Huò, 戴 Dài, 魏 Wèi

盧 Lú, 賴 Lài, 閻 Yán, 錢 Qián, 韓 Hán, 鍾 Zhōng, 謝 Xiè, 簡 Jiǎn, 蕭 Xiāo, 顏 Yán, 龐 Páng, 譚 Tán, 關 Guān, 嚴 Yán, 羅 Luó, 顧 Gù, 蘇 Sū, 龔 Gōng

and more importantly this

and

and

hmmm and perhaps