Hi, I used this website a lot when I started learning japanese : https://realkana.com/ It was really efficient for me but it depends on the ppl. I was learning "line by line", for example first line : A, I, U, E, O Step 1, I select the line and study it on the website and write every kana that pop (You can find the stroke order here : https://en.wikipedia.org/wiki/Hiragana#/media/File:Table_hiragana.svg) Step 2, when I feel like I can remember quickly enough how to read I try to only write it. So, I write A I U E O on a paper and try to remember how to write the kana, I will repeat until I remember. Step 3, I add a second line : ka, ki, ku, ke, ko + a, i, u, e, o. It's important to keep the one you already learned so you're making sure you will not forget them. etc...... I learned kana in 1 week with this technic ! It's important to find which way to learn is better for you because after kana, you will have to learn kanji aswell so it's good to know how to start. Hope my answer is clear enough and helpful.

Hiragana: table 1=========== a i u e o あいうえお na ni nu ne no なにぬねの ma mi mu me mo まみむめも ra ri ru re ro らりるれろ ya yu yo やゆよ wa wo わを n わを table 2=========== ka ki ku ke ko かきくけお ga gi gu ge go がぎぐげご sa si su se so さしすせそ za zi zu ze zo ざじずぜぞ ta chi tsu te to たちつてと da dzi dzu de do だぢづでど ha hi fu he ho はひふへほ ba bi bu be bo ばびぶべぼ pa pi pu pe po ぱぴぷぺぽ table 3=========== nya nyu nyo にゃ にゅ にょ mya myu myo みゃ みゅ みょ rya ryu ryo りゃ りゅ りょ hya hyu hyo ひゃ ひゅ ひょ bya byu byo びゃ びゅ びょ pya pyu pyo ぴゃ ぴゅ ぴょ kya kyu kyo きゃ きゅ きょ gya gyu gyo ぎゃ ぎゅ ぎょ sya syu syo しゃ しゅ しょ zya zyu zyo じゃ じゅ じょ tya tyu tyo ちゃ ちゅ ちょ :)

You could download a table of hiragana and katakana (五十音图),learning one row one day,after a week , one row one day .( Or you could download an app named ‘五十音图‘ to learn. (It’s a Chinese application for learning hiragana and katakana) I just spend one week to learn it , but completely remember them.)

When I was learning in a classroom environment, my teacher would give us five kana per day to memorize and then quiz us the next class. I studied by writing each kana over and over again and testing myself on quizlet. If you're looking to challenge yourself and increase your phonetic understanding of the language, another really good exercise is to sound out the Japanese pronunciation of English words and then write them in katakana.

多学，多背，多用。刻苦努力就一定有收获