A famous novelist recently said that she accepted no editing because rewriting would be like changing her spleen. This feeling is common in lyric poets, who write about moments of keen, personal emotion. But two good heads are still better than one. The famous novelist would be an even better famous novelist if her work had been well edited. It is easy to become over-protective of your poetry but try to step back.
Poetry is a form which works towards perfection, but no poem is ever perfect.
Take as much advice as you can. You can cut it out, and sometimes line 425 needs to be cut. Don't Get Hooked Help is addictive. Take advice on your work, but eventually there will come a point where you can't gain any more from that input without losing something else. You have to work out for yourself when this time comes.