My Sewing machine won't catch the bobbin thread after a few stiches. HELP!?

I have a Kenmore Sewing Machine model number 385.15358. This morning I replaced the needle since it has been a while. I added a new bobbin with thread the same way I always have. The thread from the top will not catch the bobbin thread. It just bunches up in the bobbin area. I have taken it apart to clean and remove line. I've taken of the foot cover and removed lint from there. I've also put the old needle back on and tried using an old bobbin that worked before. I'm not very technical when it comes to the machine. I'm still new at this. Any help will be greatly appreciated! Thanks You!