Need to figure out which way to insert needle.

Easy things first ... make sure the needle is inserted/tightened correctly. Then make sure the stitch width dial is set correctly.
If your needle is truly out of alignment then this video should help

https://www.google.com/search?q=sewing+machine+needle+not+centered&oq=sewing+machine+needle+not+centered&gs_lcrp=EgZjaHJvbWUyCQgAEEUYORiABDIICAEQABgWGB4yCAgCEAAYFhgeMggIAxAAGBYYHjIICAQQABgWGB4yDQgFEAAYhgMYgAQYigUyDQgGEAAYhgMYgAQYigXSAQoxMTUyMWoxajE1qAIAsAIA&sourceid=chrome&ie=UTF-8

pls tight ur button hole foot...while inserting needle

That is because the thread guide is underneath the needle clamp, and BOTH must be removed and replaced together as a unit. In addition, the wire is held by a tiny screw in the back of the shaft. That screw also serves as the stop for the end of the needle. Take a look at the shaft right above the needle, and you'll see what looks like a grey bar--that is the screw. It's difficult to access on the back, but must be loosened first -- JUST ONE OR TWO TURNS -- to remove the wire. Then, take off the needle clamp and wire as one unit.

Insert the replacement guide inside and at the back of the needle clamp, with the hook part sticking out of the clamp. You'll see that there's an indentation in the clamp to hold it. Insert the guide and clamp as one unit, then hook the wire around the screw and tighten.

FYI - If you accidentally remove the screw (which only turns about three or four times) and drop it as I did, you don't really need it to hold the wire guide, BUT you still need a needle stop. I just inserted a toothpick when I changed needles until I could get a replacement.

The above sounds relatively easy, but you'll probably have to do some manipulating, especially the first time, and if you're like me, possibly some cussing -- but it WILL fit.

The top thread breaks

1. the needle thread is not threaded properly

2. The needle thread tension is to tight

3. The needle is bent or blunt

4. The needle is incorrectly inserted

5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew

6. the threads were not drawn to the rear after sewing

7. The thread is either to heavy or to fine for the needle

8. Try a different spool or cone of thread

first change the needle--flat side to the back of the machine, make sure the needle is inserted all the way up into the needle holder
make sure it's the correct needle for the machine
if the needle keeps hitting the bobbin plate then the machine may be out of time & would have to be take to a sewing machine shop for retiming.

Your needle is incorrectly inserted or bent. Try a new needle and use handwheel to see if it is lining correctly. Flat part of needle should face the back of the needle holder and be pushed well in.

the flat side of the shaft goes toward the back,,insert the needle as high as it will go,,& tighten the needle clamp screw

check to see if the needle is slightly rotated somehow when it was inserted intot he holder, if that appears ok I suggest just changing the needle completely,

maybe one of the parts diagrams at the Singer site would help? or us the contact there?

hi! there wind thread on bobbins winder 4 times by your hand rotate clockwise,insert in shaft bobiins winder on top of your machine near hand wheel push latch to engage loop thread on disc winder tension start your machine on pedal foot automatically winder disengage if already filled up of thead pull this winder and insert to bobbins casing insert thread to slot and pull out winder should rotate clockwise as shown.insert on shuttle hook casing and close cover needle plate.next thread your upper

threading tension as shown on red threading from spool pull threading and loop to dial tension threading and insert thread to lever needle and to needle hole tip. pull tread under the needle foot and feeder tooth.rotate hand wheel counter clockwise to hook up thread bobbibs and appear at top of needle plate,teo thread shoul appear,set dial tension to # 3 and stich to # 8 range to # 12 depend on fabric and layer of fabrics and set on straight stich sewing,let needle on upper position insert fabric for trial sewiing.put down foot needle lever. manually by hand rotate for assurance needle is free to sew if obtruction on loop bobbins thread occurs adjust all tension gradually then try again until free from sewing w/o problem star sewing.