I’d recommend spending another $5-10 on a better, maybe German, needle driver on Amazon. Get like a 5-7inch one. Those basic kits are great, but a better needle holder/driver makes such a difference!
YouTube is great and there isn’t really one that is better than another. Find one that you personally understand and can follow the instructions. FWIW Duke has a good YouTube suturing series, but again, just use whichever video(s) you are most comfortable with.
Here’s what I practice with: https://www.amazon.com/dp/B086RTFSST?ref_=cm_sw_r_apin_dp_VS3GH2G46Z8EBRREPWCQ