After years and years of knowing French, this year I’m relearning it to get my speaking back up to a halfway decent level again. I’ll be working with the beginning Assimil book, just for content to read, and Using French. I’m also working through Teach Yourself’s Perfecting French and making an effort to speak more.
On a slightly different note, if you are wanting to learn Sanskrit, I would check out Sanskrit by the Fireside, a beginners’ book for self-study. It’s a bit pedantic, but provides really simple content to get started. Here’s your link at archive.org.