My iPad connects to the wi-fi, but the connection does not hold for long, whereas my husband is enjoying continuous connection on his iPhone and iPad

First, try restarting your iPad mini. Sometimes a simple restart fixes the issue!

If that doesn't solve the issue, try forgetting the network and rejoin it (Settings > Wi-Fi > the 'i' next to your WiFi's name > Forget This Network).

If the issue still persists, try resetting and restoring your iPad mini from a backup or speak to Apple Support about your repair options.

As described, if connection is lost when using certain Apps, you may have a problem with DNS. Choosing a different DNS provider to your current default settings may resolve the problem.

For recommended DNS servers (configured at your home router and/or your iPad), you might choose one of the following Recursive DNS Providers (IPv4 and IPv6 addresses included below):

Quad9

9.9.9.9

149.112.112.112

2620:fe::fe

2620:fe::9

OpenDNS

208.67.222.222

208.67.220.220

2620:0:ccc::2

2620:0:ccd::2

Cloudflare+APNIC

1.1.1.1

1.0.0.1

2606:4700:4700::1111

2606:4700:4700::1001

If you are unsure how to change your iPad DNS settings, this page provides a thorough tutorial:

https://appleinsider.com/articles/18/04/22/how-to-change-the-dns-server-used-by-your-iphone-and-ipad

You can download iTunes on a Mac or PC: https://www.apple.com/itunes/

Unless you’re talking about logging into iTunes using your Apple ID. You can create an Apple ID here: https://appleid.apple.com/account#!&page=create

My iPad won’t let me download things cause it says I need I tunes

same I can download I need I tunes and I’m trying but it not working