Assuming you are looking for personal protection and not something more specifc like your house/family/pets I would suggest you use a candle with a powerful colour (Deep red, black, white) and anointing it with sandelwood oil (though any sort of oil will do really) and charging it with your need for protection by visualising yourself being protected. Light it, placing it on your alter. (You can engrave it with a protection rune if you want) Hold out your hands around the flame (not to close) and charge the flame with a protection spell, something along the lines of:
"By this flame here burning bright
Keep me safe with all your might
That no harm may come to me
By my will so mote it be"
For love it would again depend on the kind of love you are looking for. It can be to attract love, to strengthen love etc. If you are looking to attract love I would suggest either a pink or soft green candle but white could work also. You can anoint it with rose oil or daisy oil if you have it, while anointing it charge it with love, think about love and what kind of love you are looking for, place it in front of your window and light it. Watch the glow of the flame and its reflection in the window, visualise that glow growing stronger and stronger and bringing path your way, you can dedicate it to your love-goddess of choice or leave it be.
Hope this helps,
"If you take a copy of the Christian Bible and put it out in the wind and the rain,
soon the paper on which the words are printed will disintegrate and the words will be gone.
Our bible IS the wind and the rain."