Quixotic attempt to learn Amharic in three weeks

I know you can't learn a language in three weeks, but let's see how I fail.

How much can I learn before my granny from Ethiopia visits?

I'm unemployed so I have time to study and I'm pretty motivated. You can often get from 0 to A1 level in a language within 100 hours of study.

I should be able to learn the writing system (it's a hard one), more than 100 words, and some amount of grammar.