Start problems + Rugging driving,Lantra J1 1.5i Built 92

Hello,I greet you.I’m new here and I’m looking for advice.Have had problems with my lantra 1.5i J1 bj.92 for a few days.The starter always turns normal, the lantra just doesn’t start in the cold condition.With Startpilotspray it starts off again.Or without startspray after 20 minutes of start attempts it jumps on but runs unroundly with very low speed.Only when giving full gas it runs very well and without set-off.When the engine is warm it starts without problems the first time. I’m so desperate…My lantra only has an original 42000 km.That’s why I want to keep driving it.Who can help me.I can’t afford expensive workshop costs.Battery,Zündkerzen,Zündkabel,Luftfilter,Verteilerkappe,Verteilerfinger sind neu Has anyone got an idea?Thank you already. For your answers. MFG…