Pronunciation Links:

A vs U:

Watch this video:
https://www.youtube.com/watch?v=rD7FDwZOLAc

D vs T on the ends of words:

Watch this video (it is long, fast forward through the boring bits!)
 How to Pronounce T and D Final Consonant Sound | Learn English Pronunciation Course (youtube.com)

TH:

In general watch here:
How to PRONOUNCE TH SOUNDS in English | How to Pronounce /θs/ and /ðz/

Specifically for pronunciation of 'clothes' watch here:
How to Pronounce CLOTHES and CLOSE in British English

V vs W:

Watch this video:

How to pronounce the V and W (and how NOT to confuse them when speaking)

Want vs won't

Watch my 40-second video for a quick trick how to say these two words correctly.