I have found my very first wallet - what now?

I have been very fortunate to gain access back to my very first wallet from around 2014/2015 with approx 1 bitcoin, since then I have never dabbled in crypto, the wallet is quite obscure and I am afraid of keeping my bitcoin in there any longer, how can I safely transfer my bitcoin to a good alternative wallet and what wallet suggestions do you guys have? I don't know if this is the right subreddit so I do apologise, also, how would I go about cashing out my money? Bank transfer preferably. Thanks