Advice for newby

Hi guys

(please be kind in your advice and sorry if my ignorance is annoying).

I'm interested in diversifying my finance portfolio. I'm currently splitting a modest international teaching income between pension and a deposit for a house.

I've done quite a lot of reading on bitcoin and ready to take the plunge but also don't have loads of money to throw at it (im a single mum to 1 kid so also need to be somewhat careful)

Is it still worth it for someone in my situation who could buy small amounts and is there a certain wallet/coin you recommend buying? Thank you!