A1 And B1 are both valid for two years. A1 is good enough for spouse visa but doing B1 will mean you don't need to do another English test later as B1 or higher is required for ILR.

If your English is good enough go for life skills

CFO is a seminar all Filipinos have to attend before migrating to a foreign country. You need to attend and get the certificate. It costs 400 pesos. Once you get the spouse visa a stamp will be placed in your passport. You won't be able to leave without it.

You can do the seminar before you get the visa. You will need to take copies of your husbands passport with the stamps showing his visits to the Philippines. His plane e tickets and photos of you together. Take your marriage certificate and be prepared to answer questions about you're relationship. They will test to check it's genuine.

Also take nbi and police clearance. Your own passport and two valid ID.p