When you data differs like this please give multiple examples of your data so the person helping can take the variations into account.
<b></b><table cellpadding="2.5px" rules="all" style=";background-color: rgb(255,255,255);border: 1px solid;border-collapse: collapse; border-color: rgb(187,187,187)"><colgroup><col width="25px" style="background-color: rgb(218,231,245)" /><col /><col /></colgroup><thead><tr style=" background-color: rgb(218,231,245);text-align: center;color: rgb(22,17,32)"><th></th><th>A</th><th>B</th></tr></thead><tbody><tr ><td style="color: rgb(22,17,32);text-align: center;">1</td><td style=";">https://www.youtube.com/watch?v=Hc7BjYmn9z0</td><td style=";">Hc7BjYmn9z0</td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">2</td><td style=";">https://www.youtube.com/watch?v=rOG_bHqknTk&list=PLCfCFkNhhqbuX_NpY0n3tbIFHOWjwcjrJ</td><td style=";">rOG_bHqknTk</td></tr></tbody></table><p style="width:4.8em;font-weight:bold;margin:0;padding:0.2em 0.6em 0.2em 0.5em;border: 1px solid rgb(187,187,187);border-top:none;text-align: center;background-color: rgb(218,231,245);color: rgb(22,17,32)">Sheet2</p><br /><br /><table width="85%" cellpadding="2.5px" rules="all" style=";border: 2px solid black;border-collapse:collapse;padding: 0.4em;background-color: rgb(255,255,255)" ><tr><td style="padding:6px" ><b>Worksheet Formulas</b><table cellpadding="2.5px" width="100%" rules="all" style="border: 1px solid;text-align:center;background-color: rgb(255,255,255);border-collapse: collapse; border-color: rgb(187,187,187)"><thead><tr style=" background-color: rgb(218,231,245);color: rgb(22,17,32)"><th width="10px">Cell</th><th style="text-align:left;padding-left:5px;">Formula</th></tr></thead><tbody><tr><th width="10px" style=" background-color: rgb(218,231,245);color: rgb(22,17,32)">B1</th><td style="text-align:left">=IF(<font color="Blue">ISERROR(<font color="Red">SEARCH(<font color="Green">"&",A1</font>)</font>),RIGHT(<font color="Red">A1,LEN(<font color="Green">A1</font>)-SEARCH(<font color="Green">"=",A1</font>)</font>),MID(<font color="Red">A1,SEARCH(<font color="Green">"=",A1</font>)+1,SEARCH(<font color="Green">"&",A1</font>)-(<font color="Green">SEARCH(<font color="Purple">"=",A1</font>)+1</font>)</font>)</font>)</td></tr><tr><th width="10px" style=" background-color: rgb(218,231,245);color: rgb(22,17,32)">B2</th><td style="text-align:left">=IF(<font color="Blue">ISERROR(<font color="Red">SEARCH(<font color="Green">"&",A2</font>)</font>),RIGHT(<font color="Red">A2,LEN(<font color="Green">A2</font>)-SEARCH(<font color="Green">"=",A2</font>)</font>),MID(<font color="Red">A2,SEARCH(<font color="Green">"=",A2</font>)+1,SEARCH(<font color="Green">"&",A2</font>)-(<font color="Green">SEARCH(<font color="Purple">"=",A2</font>)+1</font>)</font>)</font>)</td></tr></tbody></table></td></tr></table><br />