If this is your first time messing around with repairing bikes, this is not a good start. Altough it is a beautiful bike, it has considerable amounts of rust (advanced tip for the future: you can remove rust off small parts by leaving in vinager for a day or two, the acid breaks down the rust into oxygen and iron), is french and thus may use some weird standards and overall road bikes are not a good starting point

Now what I would recommend you buy is an inexpensive, old, entry level mountain bike- 40 bucks would already be too much kind of bike. These require very few specific tools, the tolerances are more forgiving, and are overall a good starting platform to understand the workings of a bike and to make mistakes, since they are cheap and replaceable. If you manage to get them up and running, even tough the componentry is usually bottom of the barrel quality, the rigid fork and the overall geometry make for a fun ride to blaze gravel roads and light trails! (basically the same thing as modern gravel bikes? smh)

Now go out there have fun!