omg...... Today, even chinese people don't learn 五笔输入法..... I admire you so much...
a chinese guy created 五笔输入法 because at that time, 拼音输入法(微软) is too slow.
Today, 拼音输入法(搜狗 or google or others) is so powerful(模糊输入、忽略前后鼻音、省略韵母、智能词库等) that we can type chinese characters very fast.... Ofc, it's slower than 五笔输入法. But for most of cases, it's fast enough.
Who needs 五笔输入法 today?
从事和文言文有关的工作者 -------- As in 文言文, there is rarely contemporary chinese word, whereas 拼音输入法 is fast ONLY IF when we type contemporary chinese.
速记员 ---------- if a person really need to type chinese very fast, he'd better use 五笔输入法.
So, seriously, if you really need to learn 五笔输入法, go to learn it because you have no choice. If not, I suggest not learning 五笔输入法 because it's hard and you will spend much time on it.
If you want to learn it, you can:
1) search 五笔输入法 in YouTube or google or baidu "五笔输入法教程". The first step to learn 五笔输入法 is to memorize lots of stuffs. You could start memorizing them from some videos or from some webs tutorials.
2) google or baidu: "五笔输入法练习软件". You will get some software online or downloading to practice 五笔输入法. I think 金山打字通 is a very good software. You can baidu(www.baidu.com): 金山打字通下载. Then you can download it with clicking "立即下载" in the first result: 金山打字通最新官方版下载_百度软件中心.